All Lupine products are proudly built in Conway, New Hampshire and Guaranteed (Even if Chewed). Made from woven nylon, in six rich colors. 1/2-inch wide collars are suitable for puppies and small dogs up to about 20 lbs. Features strong bar-tack stitching, welded D-ring and a custom designed side-release buckle. Matching leads available. Three adjustable size ranges. To determine collar size, measure snugly around the middle of the dog's neck, then add an extra 5-percent for a comfortable fit. Machine wash, warm water, mild soap (no bleach or bleach alternative). Air dry. Lupine products are not recommended for tie-out.