Butterfly Roundell – is a High Tension table tennis rubber with pimples-in, designed for players aiming to increase their potential through speed, spin, and control. With a soft topsheet, flexible sponge, and High Tension technology, Roundell ensures dynamic offense, stability, and a classic "glue" feel reminiscent of the traditional speed glue effect. Made in Japan and ITTF approved, this rubber is an excellent choice for beginner and intermediate offensive players seeking consistent performance and controllable power, especially when playing with 40+ plastic balls.
Key features:
• Rubber type: High Tension, pimples-in
• Speed: 77/100
• Spin: 43/100
• Trajectory: 58/100
• Sponge hardness: 35° (soft)
• Sponge thickness: 1.7 mm, 1.9 mm, 2.1 mm
• Colors: Red, Black
• Country of origin: Japan
• Approval: ITTF approved
Butterfly Roundell stands out with advanced construction that balances speed, spin, and control to meet the demands of modern offensive play:
• Sponge (35°): The soft sponge (35° on the Butterfly scale, close to 30–35° on the ESN scale) is flexible and porous, providing excellent feel and high control. Its structure allows easy power generation in attacking while ensuring stability for blocks and short strokes. Compared to Tenergy 05 (36°), Roundell’s sponge is slightly softer, offering more forgiveness and easier handling, suitable for beginners and intermediate players.
• Soft topsheet: The topsheet is soft and elastic, optimized for speed and spin. It extends ball contact (dwell time), allowing strong topspin and controlled trajectories. The topsheet is durable, wear-resistant, and adapted for plastic balls, ensuring consistent grip. Compared to Bryce Speed, Roundell offers more spin, close to the level of Sriver, while maintaining speed close to Tenergy 05.
• Pimple geometry: The inward pimples are of medium length, densely arranged, optimized for speed (77/100), spin (43/100), and trajectory (58/100). This structure allows easy execution of topspin loops, blocks, and flicks while maintaining high control. Compared to Impartial XS, Roundell’s pimples are longer and more flexible, focused on spin and stability rather than flat hits.
• High Tension technology: Roundell uses High Tension technology, which stretches the topsheet to increase elasticity and speed. This technology creates a "catapult" effect reminiscent of traditional speed glue feel and enhances the reactivity of the pimples, enabling quick attacks and topspin generation. Compared to the Tenergy series, Roundell’s High Tension effect is milder, focused on control and consistency, making it easier to handle for beginners.
The rubber is available in 1.7 mm, 1.9 mm, and 2.1 mm sponge thicknesses:
1.7 mm is suitable for controlled strokes and the backhand side, 1.9 mm for balanced play, and 2.1 mm for maximum speed and spin on the forehand side. The rubber is medium weight (uncut ~65 g, cut ~45–50 g), close to Sriver G3 or Yasaka Mark V. Colors – red and black – comply with ITTF standards. Butterfly recommends using Free Chack glue when assembling the rubber.
Butterfly Roundell offers technical characteristics tailored for offensive play with high control:
• Speed: 77/100. The rubber is fast, suitable for topspin looping, flat hits, and counterattacks at the table. Compared to Bryce Speed (speed ~80/100), Roundell is slightly slower but close to Tenergy 05 speed, focused on consistency and control.
• Spin: 43/100. The rubber generates strong spin in topspins, serves, and flicks, offering more spin than Bryce Speed but less than Tenergy 05. Compared to Sriver (spin ~50/100), Roundell’s spin is slightly lower but sufficient for looping and disruptive play.
• Control: Control rating not specified, but the soft sponge and flexible topsheet ensure high control, especially for blocking and short strokes. Compared to Tenergy 05 (control ~6/10), Roundell is easier to handle, suitable for beginners and intermediate players.
Trajectory: Medium-high, slightly curved (arc: 58/100), suitable for topspin looping and controlled strokes. The trajectory is higher than Bryce Speed, ensuring safety over the net, yet remains straight enough for quick shots. Users highlight the rubber’s “control,” “consistency,” and “glue feel,” especially in looping.
Butterfly Roundell is a versatile rubber, compatible with various blades depending on playing style:
• Butterfly Korbel SK7: Adds extra speed and power to topspin shots, suitable for aggressive attackers.
• Butterfly Innerforce Layer ALC.S: Balances speed and control, ideal for all-round strokes.
• Butterfly Maze Performance: Maximizes feel, suitable for looping and technique development.
• Butterfly SK Carbon: Adds speed, suitable for fast offense at the table.
The rubber is also suitable for all-wood blades like Yasaka Sweden Extra, as the soft sponge and High Tension technology compensate for the blade’s hardness, providing more spin and control. Users recommend using Roundell on the forehand with 2.1 mm sponge for maximum speed and spin, or on the backhand with 1.9 mm for more blocking control. The rubber is optimized for plastic balls, as the flexible topsheet efficiently generates spin and speed.
Butterfly Roundell is designed for offensive players seeking speed, spin, and consistency:
• For beginner attackers learning topspin loops and fast play at the table.
• For intermediate players seeking a rubber suitable for aggressive shots and rally control.
• For close-to-the-table play: Topspin loops, flicks, blocks.
• For offensive strokes: Counterattacks, flat hits, high-spin shots.
• For serves and returns: The rubber allows generating tricky side spin serves and accurate returns.
The rubber is highly effective in topspin looping (8.6/10) due to strong spin and stable trajectory. In blocking (8.4/10), it offers control and precision, especially against topspin shots. In flicks and short play (8.3/10), the rubber ensures quick response. In serves (8.2/10), it enables generating side spin and backspin. Compared to Tenergy 05, Roundell is easier to control, making it suitable for a wider range of players. Users praise the rubber’s “consistency,” “glue feel,” and “control,” especially in looping.
Butterfly Roundell stands out as a versatile offensive rubber:
• Speed (77/100), suitable for topspin loops, counterattacks.
• Spin (43/100), effective in looping, serves.
• Control: High, ensuring stability in offense.
• High Tension technology: “Catapult” effect, glue-like feel.
• Soft sponge: Excellent feel and forgiveness.
• Japanese quality: ITTF approved, made with Butterfly craftsmanship.
Compared to Sriver G3, Roundell offers more speed and a modern feel. Compared to Yasaka Mark V, it is faster and grippier, suitable for more aggressive play. Users emphasize the rubber’s “control,” “consistency,” and “flexibility,” especially for beginners.
Butterfly Roundell is ITTF approved, making it suitable for official competitions and ideal for players looking to develop their offensive game with a controllable rubber that still delivers speed and spin. Its Japanese construction ensures high manufacturing standards and consistent quality across sheets.
In summary, Butterfly Roundell is an excellent choice for:
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Beginner attackers learning topspin looping and quick gameplay near the table
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Intermediate players seeking a rubber suitable for aggressive shots and rally control
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Play near the table: Topspin looping shots, flick shots, blocks
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Offensive strokes: Counterattacks, flat hits, high-spin shots
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Serves and returns: The rubber allows generating deceptive sidespin serves and accurate receives
Roundell excels in topspin looping strokes (8.6/10) due to its strong spin and stable trajectory. In blocking (8.4/10), it offers control and precision, especially against topspin shots. In flick shots and short play (8.3/10), the rubber ensures quick response. On serves (8.2/10), it enables the generation of sidespin and backspin. Compared to Tenergy 05, Roundell is more manageable, making it suitable for a wider range of players. Users praise its “consistency,” “glue feel,” and “control,” especially in looping.
Butterfly Roundell stands out as a versatile offensive rubber:
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Speed (77/100): Suitable for topspin looping shots, counterattacks
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Spin (43/100): Effective in looping, serving
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Control: High, ensuring stability in attacking play
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High Tension technology: “Catapult” effect, glue-like feel
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Soft sponge: Great feel and forgiveness
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Japanese quality: ITTF approved, made with Butterfly craftsmanship
Compared to Sriver G3, Roundell offers more speed and a modern feel. Compared to Yasaka Mark V, it is faster and grippier, suited for a more aggressive playing style. Users highlight the rubber’s “control,” “consistency,” and “flexibility,” especially for beginners.