Up for your consideration is a slip collar for your pup, perfect for training good behaviors and breaking bad habits. The collar slips over your pup's head, clip the leash to the metal D ring. When pressure is applied, the collar cinches up and when pressure is released the collar relaxes back down. Default collar is BLACK and 18 inches long. Buyer may modify collar color and length in a message to the seller at checkout, please allow 3 business days handling time if modifying.