Scientific Training MethodsThe training clicker will have the clear sound after pressing the button. Big button for easy clicking and loud sound. Clicker training method is now more and more popular, do not need to beat or make voice by your own. It can make your pets to learn a variety of small tricks, and not easy to forget. Durable & SafeUnlike the expensive electric shock dog training products, dog clickers do not contain electricity. The shape of the water droplets in the hands is very comfortable.Stainless steel shrapnel by 10,000 times the pressure will not deformed or rust. 2 Pack2 different colors on package (black & white) Convenient to carry and store. You can place it in car, bag and pocket to obtain it easily when you need to train your pets. Wide ApplicationsThe clicker can not only train dogs, but also training cats, birds, sheep and even mice. Is your essential sensitive pet training tool. You will have a happy and trusting communication tool with your pet.