Premium Material -- Tactical dog collar is made by 1000D reinforced nylon fabric and strong metal buckle, which is very durable, wear-resisting, highly recommended by military and police equipment fans. Soft and Comfortable -- Adjustable Dog collar with quick realease is designed with softbreathable padded lining, humanization design for collar.1.5" Width rounded corner its comfortable for wearing, it wont hurt dogs fur and it can protectdogs neck well Practical Design-- Military dog collar has special control handle, it can help you control your dog well, its perfect for medium and large dog, especially for dog training, patrolling, walking, and hunting Double Security--Integrated collar button design for military training dog collar, one button to unlock, its easy to put on and take off, metal buckle is adjustable, you can change the length of collar based on your dogs neck size, magic sticker andmetal buckle offers double security for your dog, it's not easy to fall off Sizes --37-45cm