Material: NBR (Nitrile Rubber) Hardness: 35 degrees Size: Approximately 14cm x Approximately 11.6cm x 0.5mm Weight: Approximately 12g Country of Manufacture: Japan Due to the stretchy nature of the rubber, please allow for some error in cutting. 【Product Overview】 By attaching this to the grip of a racket, the vibrations at impact are quickly dampened, reducing the strain on the wrist and elbow. The reduced vibration makes the feel of the ball softer. Modern rackets incorporate technology to suppress vibration in the grip, so this product may not be effective with such rackets. This product is for those who don't want to use a vibration dampener because it reduces repulsion, want to improve a hard feel, or want to suppress vibrations at impact. 【Comparison】 Compared to vibration damping materials FLAX and VIBECUT used by player Aoi Ito. FLAX Merits: 0.1/0.2mm, weight 2g, minimal impact on SW Demerits: Based on reviews, the effect may be limited VIBECUT Merits: Easy to attach and detach Demerits: 5g increase on the shaft, changing SW and racket balance Tennis Vibration Absorption, Vibration Damping Rubber Merits: High vibration damping ability, small impact on SW due to grip attachment Demerits: Rubber processing required, slightly heavy, grip size becomes slightly thicker. 【Attachment】 Recommended to be placed under the replacement grip, but it is also effective under the overgrip. Since it is 14cm (12g), cutting it to 7cm will yield two pieces, resulting in only a 6g increase. 【What to Prepare】 Masking tape, ruler, new blade cutter, cutting mat, double-sided tape (tape with not too strong adhesive) 【How to Cut and Set】 Cut with the cutter blade by applying it 3-4 times. Trying to cut it in one go may stretch the rubber and prevent a clean cut. Cutting into 8 sides (8 pieces) will retain the angular feel, but it is difficult, so simply making the sheet into a cylinder is recommended. If you want to place rubber on the grip end's mountain, cut the mountain part first, or stretch the rubber and secure it with tape. Cut the overlapping parts of the rubber and tape the ends. If you are making it 7cm (half), set the rubber from the base of your index finger to your palm. Replacement grip is available here ↓ #akki_presents_cost-effective_grip_tape