FANTASY WORLD Fantasy World Co., Ltd. Multi Clicker High-Quality Dog Training Tool Can be used for sit, stay, down, and for issues like excessive barking and pulling on the leash. When your dog does something good, click the clicker and praise them or give them a treat. The dog will associate the clicker sound with getting a treat or being praised! Dogs are smart; they will learn if you teach them. My dog learned sit, paw, other paw, down, roll over, stop, one-two (go to the house and use the toilet), and "look at mom!" (and would make eye contact) in a week. I didn't intend to teach any more, and it's been stored away for about three years without use. Price is not negotiable. Will be shipped in simple packaging.