Scientific training methods. After tapping the button, the training clicker will emit a clear sound. Large buttons, easy to click and loud sound. [Simple and safe] The product does not contain electricity and will not shock the dog and the owner. The shape of the water drop is very comfortable to hold in the hand, the sound is stable, the keys are easy to recognize, the stainless steel shrapnel is not deformed after 10,000 times of pressure, it is durable and does not rust. [3 clickers on the package. You can put them in the car, in the house, in the bag, when you need to train your pets, they can be easily obtained. [Comfortable design] ABS plastic + stainless steel ring material, no rust, durable, matte surface, non-slip treatment, easy to hold. Drop-shaped, suitable for any palm size, easy to control. [Wide use] Clickers can train not only dogs, but also cats, birds, chickens, sheep and even mice. Is your essential sensitive pet training tool. Basic Product Information Material: ABS plastic and stainless steel Product size: 6*4*2cm (one piece) Weight: about 45g (3 pieces) Package includes: 3 x Pet training clicker with wristband 1 x User Manual