Keep the game going even longer with the Nerf Dog ULTRA Translucent TPR Sonic Ball Dog Toy. This ball is designed to withstand hour after hour of your furry friend’s chewing and catching thanks to durable thermoplastic rubber (TPR) and a grooved design he’ll want to sink his teeth into. Throw this translucent ball alone or use in tandem with a ball launcher for shoulder-saving, effort-free playtime.