Justmysport Potty Doorbells Housetraining Dog Doorbells Tinkle Bells for House Training Potty Training Black Friendly design: Adjustable height,can be adjust by the rivet,high quality chrome plated buttons,sturdy enough for any dog or door,you don't need to measure the height of the door and buy the correct one, no need for extra tools to attach it to the door,this is very convenient for you to use. Useful:Train your dog to use the doorbell: attract your dog's attention by the loud bell sound. Protect your door from being scratched by your dogs,an easier, better way for your dog to communicate,instead of hearing barking and scratching, you hear the gentle jingle of potty doorbells, we offer an easier, better way for your dog to communicate,quickly and easily know when your dog needs to go. High-quality material: Using high-quality nylon material, more durable. Perfect for dog training. Specially designed to be more firm, not easy to break. Can bear the dog bite. Non-toxic, do no harm to your pets. Stainless steel bells: Thickened iron sheet, double electroplating. Inner core steel ball, louder bell. The sound of the doorbell can spread throughout the room so you can hear your dogs in time and find them. Never miss your dog outside. Convient and practical:When you tired of cleaning your home three times per day because your new puppy makes your home a mess as you away,this can effectively teach your dog stay in the correct place.