NIMBLE is a brand found in 2009, which factory is personalized in manufacturing dog collars, leashes, harnesses and many other pet supplies. Durably made with comfort and function in mind, our long-lasting soft dog collar has:NEW PVC-based coated polyester material is smell-proof, waterproof and easier to clean than regular collars.Smooth edges for a comfortable fit.Strong, non-corrosive Rustproof electroplating zinc alloy D-ring for attaching tags and leash.High quality and secure side-release buckle for easy one handed release.Refleactive Stripe:High visibility reflective stripe offers added safety and visibility during evening walks.Please measure your pet neck size before choose the size:To determine the correct collar size for your dog, use a soft tape measure or piece of string and wrap it snugly around the base of your dog snug enough.Your pet measured neck size must fit within the collar adjustable length range. For instance, if your dog neck measures 11" inches order an Small 9.45"-14.17" inches adjustable collar.3 adjustable collar sizes:Small (5/8? inch wide by 9.45"-14.17" inches in adjustable length); Medium (3/4? inch wide by 11.81"-18.5" inches in adjustable length); Large (1" inch wide by 15.35"-24.8" inches in adjustable length);Colors:5 collar colors to choose from: Blue, Black, Orange, Fluorescent Yellow, and Pink.Note:The strong collar will also be bitten by the dog's sharp teeth. So please prevent dogs wrestle with each other.