Stainless steel bolt hangers for climbing protection & belays, rescue, and rigging work. Stainless steel for long life and corrosion protection. 3/8" bolt holes (fits 3/8" bolts or 1/2" full sleeve bolts). Clip-in point big enough to accommodate 2 carabiners. Minimum breaking strength is 2268 kilos. in shear/pullout.