Bestomrogh 8 Pack Dog Training Clicker with Wrist Strap and Big Button Effective Behavioral Training Tool for Dogs Cats Birds Horse and Other Pets(Multi-Color)Material Information: it is made of ABS plastic and stainless steel shrapnel, strong and durable, durable and will not rust, and the sound is bright Standard size: the dog clicker training single size is 6 x 4 x 1. 75 cm 2. 36 x 1. 57 x 0. 68 inch, small size, light weight, easy to carry, suitable for all palm sizes, comfortable design, easy to train Set combination: dog clicker training with wrist strap is a set of 8 different colors, including