" [Durable and Safe Material] Dog bells are made of a durable nylon material that is strong, durable and chew resistant. The harness is environmentally friendly, safe, non-toxic and odorless and does not harm your pet. And the bell is made of a metal mixture that is loud and crisp, it can be heard through the door and the wall. li> [Adjustable length] The length of the puppy bells can be easily adjusted to the size of your pet. From length 33 """ to 43""". [Efficient Training Device] With the simple training guide, dog bells are an easier and better way for your dog to communicate! Teach the animal to ring a bell when going out or going to the toilet instead of scratching the door and barking your attention. Use a gentler method to create privacy between you and your pet. li> [Clear and strong hard bell] The bells are made of high quality stainless steel, the sound is loud and clear and it is not easy to be bitten by pets. Extra loud sound will grab your attention anywhere in
