Features: The Shock Absorbers of the tennis racket can effectively absorb shock, provide a more stable hitting experience, and reduce hand fatigue. Make of silicone materials, soft and enduring, easy to install and disassemble, suitable for most tennis rackets. Long shock absorption knots, with strong tensile ability, can used for a long terms. Used during matchs, training, or leisure playing, it can effectively reduce hand vibration, improve hitting accuracy and control. Easy to use, you just need to knot it on the racket line to avoid slipping down. Specifications: Materials: Silicone Color: Redness/Blue/Black Color/Pink Color/Green/Purple/Fluorescent Yellow/Orange/White Color/Light Blue/Transparent Total length: about 11.70cm/4.61inch Package Includes: 10Pcs Tennis Racket Shock Absorbers note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.