Safe and Security - High quality iron material, odorless, safe and non-toxic. 1.57x2.75in / 4x7cm size pet training bell. Convenient and easy to use - Easy to use, put on the bell.The training bell has a big button, easy for the dog to press.Use high quality iron material to ensure durability and stability, not easy to to break. Simple and Useful - Our training doorbell is very suitable for pet potty training, it can be used as a communication medium or a great toy, such as giving pet food when they press the bell will be fun. Reusable and Durable - It can be used repeatedly and durable for long term use.You can buy it for your pet or their lover.This pet training bell is convenient and easy to wear for travel, walking, road and any other outdoor activity. Pet Training Tool - You can use the bell to train your pet, an interactive toy for your pet, The buttons on the top are flat and wide, which allows the dog to strike with its paw. training to make your dog happy and give him a communication device.