Material The slow feeder lick mats are BPA-free and non-toxic, making them super safe for your dog. They are suitable for both the freezer and the dishwasher. Anti-slip The back has an anti-slip side, making it easy to attach to the bathtub/tiles. Slower feeding Slower eating/licking also has a calming effect on the dog. The mat can be spread with peanut butter or yogurt, for example. Washable Easy to clean, either with the dishwasher or hot water.