Premium Material: Our reflective dog collar is made of high-density nylon material, which is comfortable, flexible, lightweight and stylish. The joints of nylon straps are all treated with stitching to protect your dogs and hands are not not easy to scratch during use. High Reflection: Each collar uses 2 special lines of reflective thread. Highly reflective dog collar ensures high visibility at night for added safety. And you can easily find your furry pet in the backyard at night. Safety Buckle: The quick release buckle is made of sturdy premium plastic and can be quickly released with one hand. Lighter than metal buckles, more comfortable to wear. A separate buckle on the collar makes it easy to add a dog tag and leash to the collar. Adjustable Sizes: Waist 2030 cm; 1.0cm in width suitable for puppies/cats; Size 2030 cm from the neck; 1.5cm in width suitable for puppies; Size 2540 cm from the neck; 1.5cm in width suitable for small dogs; Size 2540 cm from the neck; 2.0 cm Width