Train your dog in a fun way with the pet paw print training bell. Fitted with an uncomplicated button, your dog uses its paw to ring the bell when they're hungry or thirsty. This communication device is helpful during potty training too. The pet paw print training bell is made of manganese stainless steel and plastic, making it durable and rust-free. You don't have to worry about your pet's safety as it has buttons that are wide (7.2CM), flat and fun to use.