Hyper Pet™ Ruff & Tuff™ Fun tennis ball material encased in soft rubber. Floats in water. Soft rubber is safe for your dog's teeth. Fun shapes and sizes for any dog! Ruff & Tuff Ball - #0096 Ruff & Tuff Stick - #0098 Ruff & Tuff Bone - #0100 Ruff & Tuff Ring - #0099