Rogz Catz Glow Cat Small 11mm Reflective and Glow-in-the-Dark Cat Collars are fully adjustable for a neck size from 20-31cm and are fitted with the new Safeloc Breakaway Clip, which allows you to easily adjust the break-away load of the buckle for cats of +6.6lbs, +8.8lbs and +11lbs. Safety is still the priority so the buckle will still break free if placed under too much strain. Glow Cat collars are made with a polyurethane reflective as found in sports shoes on the inside and a unique glow-in-the-dark polyurethane on the outside with an overlay print so you can have a lot of fun turning off the lights and watching where kitty goes in the dark. The collars edges are rolled and stitched to ensure there are no open ends or sharp edges on the collar and comes with a color-coded, removable bell. Suitable for most cat breeds and sizes. Product Features : Glow in the dark reflective, Safeloc breakaway cat collar, removable bell, scratch-proof webbing, adjustable size. Material: Nylon and Polyurethane