pparkPets i-Series is a normal nylon dog collar with quick-release buckle. It is made with the best high quality nylon and woven finely to give you and your dog a nice sensation at touch. At touch it is extremely soft and silky and we make sure that the stitching is well made and it does not itch or sting when it is worn. We even used a special pattern to stitch the collar in a way that renders it stronger The lockable buckle is designed not to break easily; also, the buckle features a lock sliding button so that it is virtually impossible to be opened unwillingly or to be opened by a dog. It comes in 32 different colors to match your dog"s mood every day. It is available in 5 different sizes for perfect fitting.