Slow feeders help to prevent health conditions like regurgitation and obesity, they also provide great mental stimulation. They are made to hold both fun and food as your dog forages through the fun patterns with its non-slip base. Bowls are BPA, PVC, and phthalate-free. Fun Feeder dog bowls are top rack dishwasher safe. The low profile design on the Slo Tray is great for brachycephalic (flat-faced) breeds.