Specification: Product name: Pet doorbell Applicable objects: Universal for cats and dogs Color: Bronze Material: cotton rope + copper Product size: braided model: 75~78cm Product weight: Open bell model is about 101g/piece [woven] Packing size: 18x11x2.5cm Effective Communication: This dog doorbell is an effective tool for your dog to communicate with you without barking. This potty training doorbell can help potty train your pet and keep your home tidy. Unique Design: Our dog doorbell is designed with high-quality cotton thread or wooden beads to perfectly fit your home decoration. The bell is made of durable metal and provides excellent sound quality. EASY HANGING: This dog bell for door training has a buckle on the end so it fits any door handle you have. You can easily hang this dog doorbell on your door handle or secure it to your sliding glass door handle. Easily open and close the door as needed. Dog Training for Beginners: Potty training a puppy has never been easier! Point to the bell and say "touch". Praise and reward your puppy when he touches the training bell. Repeat this step several times. How to train: Next, when your dog hits the bell, open the door and guide your puppy to where you want it to go to the toilet. Once complete, give it another reward and praise.