Made with Non-Toxic Latex Rubber, Criterion of Detection US FDA CFR 21 (Rubber Articles) / EU CE EN71 ( Toys ) Soft, Squeeze Squeak, Bouncy Balls, No Stuffing Dogs Interactive Chew Sound and Outdoor Indoor Fetch Play Diameter: 6cm/2.4", Weight: 23g/PC, 4 PCS/set Suitable for Small Dogs - Less than 11kg(24.25lb) Product Dimensions � : � 2.36 x 2.36 x 2.36 inches; 0.81 Ounces