Reflective Cat Dog Collars with Bell Collar Purple Orange Yellow Black Green Blu This listing is for cat and small dog reflective collars. The tag shows a dog, but the collars are for both. 7/16 inch in width, 12 inch length a 3/8 inch bell. These collars do not have a prong buckle system. They lock in the circumference you set via a auto-grip or ratchet buckle. When it's set, it does not move. This allows for more custom circumference settings. The biggest circumference is 10 inches and the smallest will go down to an inch, only because the collars don't have holes and buckles. You can get an exact, more comfortable fit. There is a 1-3/4 inch long elastic belt where the buckle is attached. Gives a little stretching room. Color choice is purple, orange, yellow, black, green blue. Just use the drop down. Also, there are 2 pics I took at different angles with a led flashlight to capture the reflective qualities. As you can see, they turn bright white like. Thanks for stopping. Please visit my slow growing store, read about me, my policies and view other items that may be of interest. **I always have money saving volume discounts on most items** David - thediscountretailer