The product description 1. The adjusted collar does not slide. Make sure you leave two finger space between the dog's neck and the collar. 2. Strong and practical - 6 colors, 6 pieces of collar, convenient and practical high density ribbon, easy to change and clean for adult dogs, and for young dogs to distinguish between dogs and their birth order. 3. Soft neoprene pad - made of 100% nylon with good stitching, the pad provides the dog with maximum comfort when running and moving, lightweight and durable 4. Safety clasp - Quick release clasp is made of premium environmentally friendly plastic with a safety lock to prevent collar from accidentally opening and the collar is equipped with a D ring to allow easy use of the belt and nameplate.