After studying cats natural behaviours, this fish cat treat toy was created from a food safe TPR material exempt from BPA and BHT. Its openings are made so you can easily put a treat or some food inside. Cats can then hunt this prey in order to get their food or treats. Cats are designed by nature for hunting. When you use a treat dispenser like the cat treat fish, your cat can now have fun hunting for their food. Its size is just perfect as it respects the same size as a real mouse.