Petface Toyz Treat Ball On Rope Dog Toy is a multi-functional toy for playing and chewing. The non-toxic rubber ball has soft interlocking spikes to insert treats, kibble or treat paste providing a mental challenge that encourages problem-solving skills and prevents boredom. The rope also encourages chewing for dental care to help remove plaque and massage gums. The toy is also great for playing tug of war or a game of fetch.