Description Product Description Color: Black Material: Nylon + Iron Size: Belt Length: 2.5*96 cm, Bell Diameter: 3.8 cm Packing List: 2 Pet Bell Ropes 1. Useful and Simple Pet Doorbell: These dog bells can be easily hung on Door handle or handle. No need to scratch or bark, this bell will know when your puppy needs the toilet. 2. High-quality dog doorbell: The dog doorbell is made of strong nylon straps and durable iron bell, anti-bite and suitable for long-term use. Additionally, this adjustable doorbell comes with 7 bells that most dogs can easily touch. 3. Audible sound: The sound of the dog doorbell is loud but not harsh and can be heard within 20 meters. This way you won't hear sounds in the same room, you don't have to worry about your dog sneaking out, and this fun dog bell will grab your attention. 4. Adjustment bell Compared with ordinary two length bells, this design provides you with length adjustment levels. This makes it easy to adjust the length of the bottom of the door or wall based on the size of your dog or the height of the door. 5. Multifunctional design You don’t have to worry about the dog doorbell cord not matching your door or knob in type or size, because these dog training doorbells fit a variety of knobs, these are the ideal doorbells to ring when your dog is out.