Material: The clicker is made of PC and stainless steel shell material, high quality, scratch resistant and durable. Clicker and Whistle 2 in 1: animal communication. It can be used to train basic dog obedience and correct bad behavior. Training clickers are not charged and do not cause electric shock in dogs. the button presses easily with a good sound, not too loud or too quiet. Wide range of applications - clicker training can train not only dogs, but also cats, birds, chickens , horses and even mice. This is your essential pet training tool. Size: 7.5 x 3.5 x 2cm, color: black, weight: about 16g, hanging key or in your pocket, easy to carry.