1 forged aluminum ring for descending or belaying. Accommodates rope up to 5/8" (inches). Crafted of 6061-t6 aluminum and hard coated for durability. 10,000 pound (44.5kn) minimum breaking strength (MBS). 8000 pound tested Dimensions: 5 1/4" x 3" (inches). Black figure aluminum figure 8 ring. This product is GSA Compliant.