Potty Training Bells Monkey Face 27"Potty Training Bells Monkey Face 27" Measures 27 inches in length, so most dogs can reach it from most doors. The bells jingle to grab your attention and let you know that your dog is ready to go out. Helps eliminate indoor accidents by giving your dog an easy way to tell you when he needs to go outside. The colorful design helps keep the training bells visible for your pup. Helps prevent barking, whining and helps keep your dog from scratching the