Great for pet dog potty training, housetraining and houserbreaking; Betty way for the communication between your pets and you. Not only can be a pet dog doorbell, but also can be a service bell/doorbell for stores, restaurants, bar and hotel. The pleasant chime sound is loud as well as clearly without noisy sound, which can be heard at a distance. Bell is attached to a strong springy band, smooth without any slot to hurt their pets when they need to ring the bell. High quality solid metal hanger with brass bell, 3 screws are included to install it on the door or wall easily.How to train your lovely pet quickly? STEP 1: Install the bells on the door,and put the bell at the perfect height for your dog to ensure it is easwily reachable by your dog. STEP 2: Before taking your dog out to bathroom, communicate with your dogs by ringing the bell, introduce a verbal command like, lets go out.demonstrate it few times to let your pet understand your intent. After repetition, your puppy will start to associate these words with going to the bathroom. If you take your dog out to play,make sure to pick a different phrase. STEP 3: When your puppy goes to the bathroom where they should, praise them and offer a treat or food. When they know theyre doing the right thing, they will want to continue to do so to please you. Solid Material Our bell are made out of brass Metal. bell is attached to a strong springy band, which is durable and very springy Easy to Install Our bells come with 3 pack screws for easy installation. You can mount the bell on the door or wall.Unlike strap type door bells which might be too high for small dogs to reach. You can put our bell at the perfect height for your dog. Pleasant Sound The pleasant chime sound is loud as well as clearly without noisy sound, When your friend call you ,you can get the message clearly wherever you are in the house. And Your door will end scratching.