Military material: The dog training collar is made of double-layer 1000D nylon fiber, and the inner lining is soft and comfortable. It will not harm the hair on the dogs neck. It is suitable for all occasions. Unique design: Our dog tactical collar has a special design of D-ring and Velcro panel. D-rings can be used with tow ropes. You can place an ID label on the Velcro panel for easy identification. Adjustable: The military dog collar is equipped with a sturdy metal double pin buckle and 5 adjustable nodes to choose from. The length can be adjusted according to the dog's neck circumference to achieve a perfect adaptation effect. Applicable occasions: military collars ensure the safety of daily dog activities with their durable materials and unique design. Suitable for medium and large dogs, especially widely used in dog training, hiking, walking, hunting and daily use. Size M: The total length of the collar is 60cm, suitable for dogs with a neck length of 37-45cm. Size L: The total length of the collar is 68cm, suitable for dogs with a neck length of 45-53cm. Size XL: The total length of the collar is 76cm, suitable for dogs with a neck length of 53-63cm.