Features: High performances vibrations dampener effectively absorbs shock during play, protecting wrists and arms while enhancing swing comfort for racket control. Featuring universals clip on design and premium silicone materials, these 12 pack dampeners install effortlessly on most tennis racket string bed without tools. Designed for intermediate to advanced players seeking vibrations reduction and injury prevention during intense rallies or extended practice. Optimize your game in tournaments, club competitions, or casual play with light weight dampeners that maintain racket balance and natural ball feedbacks. Engineered with silicones technology, these durability shock absorbers retain elasticity through repeated impacts and weather variations for season long reliability. Specifications: Dimension:2x6cm/0.78×2.36in Component:silicones Package Includes: 12pcs tennis racket shocked absorber note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.