Overview: Durable material: This sturdy dog collar is made from durable high-quality 1000D nylon with neat seams and soft lining to keep dog skin and hair hot and comfortable to wear. There are 2 types of clips that are randomly transmitted. Velcro and double quick release buckle. The quick release metal buckle is easy to remove. A tactical dog collar will actually first have a Velcro first, so you can lock the buckle for double protection so your dog won't tear it. Specifications: Material: Nylon Product Category: Outdoor Color: black, army green, mud color, CP Specifications (length * width): M: 34-42CM, L: 43-50CM, XL: 51-61CM Size Information: Package Content: 1*Tactical dog pen