Lupine products are proudly built in Conway New Hampshire and Guaranteed (Even if Chewed). They are not chew-proof (no fabric is!) but if they get chewed LupinePet will replace them. Search on Lupine Guarantee to see how EZ it is!1/2-inch-wide collars are suitable for small dogs and puppies under 20 pounds. There are three adjustable size ranges: 6-9 inches (very tiny!); 8-12 inches (cat-sized); 10-16 inches (small thick-necked breeds like Pugs). To determine collar size measure snugly around the middle of the dogs neck then add an extra 5-percent for a comfortable fit. Or measure the current collar. Lupine Originals are made from woven nylon in an array of colorful designs. The pattern is woven into the webbing rather than printed or sewn on. Made with strong bar-tack stitching welded steel hardware and ends are turned under and stitched to protect fur and skin. Matching padded handle leashes and harnesses are available. Lupine products are not intended for tie-out.