Kong toys are widely used as therapy for prevention of boredom separation anxiety and other behavioral issues. Providing food or treat-stuffed Kong toys for your dogs can keep them contently busy working and out of trouble for long periods of time. It features a revolutionary design makes toy bounce unpredictably in every direction. Hollow center can be stuffed with treats or peanut butter to give dogs an extra playtime challenge. Non-splintering non-abrasive does not get sharp when chewed. Made of thick puncture-resistant rubber.