This is a great enrichment toy for pigs. It's a fun way to learn and get rewarded with a treat. Keeping your pig busy is the key to having a less vocal pig so I like to have a variety of treat seeking puzzles and games. Food will drop into the slow feeder. The base of this feeder is heavy so it doesn't easily tip over. It's made of non-toxic ABS so it's a durable plastic. It's also environmentally friendly and easy to clean. All my pigs love this interactive toy. The height is adjustable and seems to work well for pigs of all sizes. Please see Pic 2 for size information.