The Kumalong Head Halter is placed over your dog's muzzle and fastened behind the ears. Now, instead of being able to use his shoulders to pull against you as he would in a normal collar, your dog can only use his much weaker neck muscles, allowing you to use the lead gently and effortlessly. The Kumalong Head Halter is NOT a muzzle, your dog will still have the freedom to yawn, pant, retrieve and bark if he wants to, but the Head Halter will enable you to stop him pulling ahead. Any lead can be attached to the Kumalong Head Halter, although we strongly recommend our multi-purpose Double Lead which adds extra protection and gentler handling. LIMITED SIZES AVAILABLE