Fixe Rappel Ring Anchors are made from 11mm rod stock and are T.I.G. welded. Whether used with conventional sling material or screw links and chain. A rappel ring completes any anchor. Plated Steel, #199: Plated - Rated at 35kn/8,500lbs. Inner Diameter- 1 3/8" Outer Diameter- 2 1/8" 10mm rod stock