The adjustable check training collar features a buckle that allows you to easily put the collar on your dog or remove it. It has a limited-closure chain loop combined with a nylon collar for gentle correction. The limited-closure chain loop prevents the collar from becoming too tight while the nylon reduces loss of neck hair. This package contains one .75 inch wide training collar that adjusts from 18 inches to 18 inches. Comes in a variety of colors. Each sold separately. Made in USA.