The Treat Challenger, one of GURU's most innovative designs, is ideal for occupying dogs for long periods of time while challenging and engaging instinctive behaviours. This one toy brings twice the challenge! Hand load kibble or small treats into the ball and cylinder, and as the toy moves around, it dispenses kibble finally reaching - and rewarding - the dog. This toy uniquely has two different levels of difficulty to keep dogs engaged for long periods of time. The Treat Challenger is made with Chew Pro; GURU's ultra-durable, custom, non-toxic thermoplastic rubber formulated specifically for tough chew sessions and long-lasting play. Easy to clean and top-shelf dishwasher safe.