Features: Train your dog effortlessly with the dogs training doorbells! These adjustable length training doorbells feature 6/7 loud bells, ensuring effectively communication for your furry friend potty needs. Achieve successful toilet training with our loud puppy potty training doorbells! The sounds from 6/7 big bells can be heard throughout your home, making it easy for your dog to communicate their needs. Designed for pet owners who want to train their dogs effectively, our dog bells is suitable for all breeds and sizes. Whether you're a new dog owner or an experienced trainer, this training tool will help establish clear communications with your furry companions. Use the dogs bells anywhere in your house to ensure good training and obedient pup. Hang it on any door at your preferred height, thanks to its adjustable length feature. It's wonderful for controlling your dog's movements and keeping them within designated areas. Take control of your dog's safety and behavior with our dog bells. Whether you're at home, in the park, or camping, this training tool provides a reliable way to monitor your dog's activities. Specifications: Material: Plastic Size: 6 bells&7bell: As Shown As Picture Set: 88x42mm/ 3.46x1.65in Type: 6bells, 7bells, Black, Blue, Yellow, Red Package Includes: 1pc/1set Pet Training Doorbell note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item.