Description Reviews This is a nice size unrestrictive width collar. The Heavy Nylon All Metal Hardware Collar is made with 5/8 wide nylon web. The collar is adjustable. Three size collar choices and five color choices. Matching leashes available. Made in the USA Available in 3 sizes: Small: neck size 8-12 Medium: neck size 11-17 Large:neck size 16-20 Available in 5 colors