Attention: the insert in size S is only suitable for porcelain bowls, not for stainless steel bowls. Relaxed eating sometimes takes time - slow feeder inserts for the DogBar The slow feeder inserts for the DogBar are available in sizes S, M and L. Made of easy to clean silicone, the bottom is covered with many small suction cups so that the inserts are really tight, the slow feeders are the ideal addition for slingers and hasty eaters. In practical tests with our team dogs, the inserts for both dry food and wet food work great. There are, of course, tricky dogs, so we recommend staying close and checking when feeding.