Artengo Versatile Tennis Ball Comfort Pro 4-pack - Yellow

Directional control - Good ball speed control due to its soft and stable rubber. Speed - Good liveliness due to its high rebound and compression resistance. Abrasion resistance - Good rebound durability due to its natural felt composition (63%). Felt: This ball is made of 63% natural felt, making it very stable and durable. Core: This ball has a co... morere made from natural rubber. This provides a quality bounce and excellent durability. This core was developed in collaboration with our partner factory. Packaging: 4-ball pack. Weight: 58.5 g.ITF standard between 56 g and 59.4 g. Diameter: 6.55 centimetres.ITF standard between 6.54 centimetres and 6.86 centimetres. Bounce height: 143 centimetres (ball dropped from a height of 2.54 m).ITF standard between 135 centimetres and 147 centimetres. Ball deformation: High viscosity index for a more comfortable ball. The viscosity index is calculated based on the ball deformation measurements.