The 3/8-inch nitelife collar adjusts for a neck size of 8-inch to 13-inch; it"s suitable for miniature poodle, yorkie and similar sized breeds * Box stitched for a quality finish * Fully Adjustable from 8" to 13" * Contoured components * Ergonomic contoured components ensure a snug fit; box stitched joins for added strength and a quality finish * Buckle-Breaking strength tested at 92lbs-114lbs from a direct pull * Contoured Plastic Components ensure a snug fit * The 3/8-Inch Nitelife collar adjusts for a neck size of 8-Inch to 13-Inch. It"s suitable for Miniature Poodle, Chihuahua, Maltese, Pom, Yorkie and similar sized breeds. * Woven reflective thread stitched into high grade nylon webbing on one side only