Natural Rubber Synthetic Wool Fiber Tennis Ball Dog Training Tennis Ball With String This tennis ball is perfect for beach cricket, tennis practice and also a good treat for the dogs! Feature: HAMANITY DESIGN: Included bungee design, no need to pick up the ball frequently. STREAMLINE BODY: Special handling line and color. TWICE VULCANIZED: Less wear and more durable. PORTABLE SIZE: Light-weight, easy to carry. WIDE APPLICABILITY: Perfect for beach cricket, good practice tool for beginner, intermediate and elite players, but also a good treat for dogs. Specification: Ball Diameter: 6.5cm / 2.6in Material: rubber Bounce Height: 110 cm (Free falling from 2.54 m Height) Deformation: 0.23 - 0.26in Recover: 0.315 - 0.36in Ball Weight: 60g / 2.1oz Package Weight: 80g / 2.8oz Package Size: 115 * 76 * 65mm / 4.5 * 3 * 2.6in Package List: 1 * Tennis Ball