Achieved approximately 1.5 times longer lifespan. A practice ball that maintains a comfortable shot feel. Japan Tennis Association recommended ball Material: Felt = wool, nylon, cotton / Core = rubber
Color: Yellow Material: Rubber, Nylon Type: Tennis Packing size: 48.5 x 40.8 x 19.3 cm; 5.2 kg Suitable for: Unisex (Adult)
