The Strap Ring is constructed of stainless steel and is break-rated at 2,000 lbs., which far exceeds all other tie-down hooks or carabiners on the market. Attaches tie-downs almost anywhere there is an 8mm or smaller bolt (smaller bolts obviously are not as strong). Multi-purpose tie-down attach point: truck bed, trailer, boat or anywhere you can put a bolt!. The eye is large enough to accept the large size 3/8″ coated tie-down hooks, as well as 8mm carabiners and comes packaged in pairs. Made in the U.S.A..