HIGH QUALITY MATERIAL: The reflective collars for are made of PP and polypropylene fiber, are comfortable to wear, durable and strong. ADJUSTABLE CAT COLLAR FOR INDOOR DOOR: Adjustable safety cat collar can be adjusted from 19cm to 32cm/7.4-12.5inch, 0.4inch(1cm) in width. Suitable for almost all , you don't have to worry about your cat getting fat or thin, can be used for a wide range of cat weights. 12 BRIGHT COLORS: Each cat collar set contains 12 pieces release cat collars in 12 different colors, are rose red, red, pink, yellow, fluorescent green, grass green, light green, royal blue, blue, purple, black, orange. You can choose the color according to your mood. SAFETY REFLECTIVE STRAP: In order to make it easy for you to find your cat at night in the dark, each cat collar has a reflective strap that can be easily seen in the dark. Don't worry about cars getting lost and make your cat safer at night. SAFETY RELEASE BUCKLE & BUCKLE: Besides the reflective strap, there is also a bell