Premium Material: Our reflective dog collar is made of high density nylon, which is comfortable, flexible, lightweight and stylish. The nylon strap joints are all treated with stitching to protect your dogs, and the hands are not easy to be scratched 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 premium heavy duty plastic and can be released quickly 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: Size 20-30cm; 1.0cm in width suitable for puppies/cats; Size 20-30 cm from the neck; 1.5cm in width suitable for puppies; Size 25-40 cm from the neck; 1.5cm in width suitable for small dogs; Size 25-40 cm from the neck; 2.0 cm Width suitable for medium dogs; Size 30-50 cm from the neck; 2.5 cm in width suitable for medium dogs; Size 40-60 cm from the neck; 2.5 cm in width suitable for large dogs. Classic Color: These classic solid colors will make your dog look more fashion and stylish when traveling and taking daily walks.