BUILT FOR MODERATE CHEWERS. Rumbl is a dry food and treat-dispensing, puzzle dog toy that encourages healthy play. Rumbl's unique "fish trap" opening makes for easy loading yet keeps dry foods and treats inside. Superior durability and hollow construction make this puzzle toy's springy material heaven to a dog's chompers while its playful wobble adds to the excitement and increases engagement. West Paw's Zogoflex Echo series feature an innovative, hollow core that creates an irresistibly squishy texture that dogs love yet remain durable. Perfect for games of tug, fetch, satisfying chewing sessions, exciting treat chases, mental enrichment, and physical exercise. Features Enrichment that encourages chasing and sniffing Playful wobble scatters treats or dry foods Doubles as a slow feeder and fits a wide variety of dry foods and treats Large Rumbl fits two cups of kibble, small fits one cup Non-toxic & Dishwasher Safe Made with zero-waste and recyclable Zogoflex material in Bozeman, Montana Backed by West Paw's Love it Guarantee(TM) Recyclable through West Paw's Join the Loop(R) recycling program