Puppy Bells Dog Doorbells for Door Knob/Potty Training/Go Outside-Dog Bells for Puppies Dogs Pet Cat for Dog Lovers-Premium Quality-3 Snaps for Length Adjustment

Bell are made of premium quality material, the surface of bell adopt Plating coating technology to keep it shine and don't rust. Belt is made from heavy duty nylon material and tested thoroughly for durability. The connection parts are well-made, solid and reliable. If you don't want to install a dog door on your own door, then choose this puppy bell, it's very convenient and easy to use, and it's fun to interact with your puppy. 3 level adjustable length,this allows for easy adjustment of the length to the bottom of the door or wall based on the size of your dog or the height of your door. Dogs all love excell with the bells!