Features: 1. STRENGTH - 2 wide and approx. 1/3 thick tactical collar with 5 layers quality military nylon material, 6mm diameters stainless steel hardware, excellent tear strength for all breeds big dogs expecially heavy pullers. Pin buckle comes more secure than cobra buckle, free worry of broken by your dog. 2.COMFORTABLE FOR YOU AND YOUR DOG - Our wide collars ease pressures from dogs neck and lined with neoprene for added comfort. Appropriate size handle brings you extra control when your dog training or hunting 3.MORE SAFETY FOR YOUR CANINE - wide large dog collars tend to be safer and stronger than their thin counterparts. 4.FOR ALL STRONG BREEDS - Includes breeds like Great Danes, Mastiffs, Doberman pinschers, Rottweilers, German shepherd and others of similar size. Sighthounds, like whippets and greyhounds, may also benefit from wide collars. Because their frames are so thin, and theyre notably more fragile than other dogs, having extra cushioning and evenly distributing pressure on their throats helps prevent damage. 5. SIZING OPTIONS: Available in 3 size fit medium to large sized dogs length of neck M (37-45CM/ 14.6-17.7 L (45-53CM/ 17.7-20.9 XL (53-61CM/ 20.9-24)