The Omega Pacific Rappel Ring packs an impressive 20kN rating to give you confidence on rappels, and it also reduces friction to make it easier to pull your rope. Using the Omega Pacific Rappel Ring reduces wear-and-tear that destroys fixed gear, and it serves in the place of a carabiner when you're building an anchor. External diameter - 54mm Internal Diameter - 30mm Rappel Ring Small Item Number — RAPRNG-SMALL Weight — 1.5 oz /42.52 gm Outside Diameter — 2.2 in /54 mm Inside Diameter — 1.18 in /30mm Thick — .472 in /12 mm Strength kN— 25 kN (5,620 lbf) Rappel Ring Large Item Number — RAPRNG-LARGE Weight — 2 oz /56.69 gm Outside Diameter — 2.75 in /70 mm Inside Diameter — 1.77 in /45mm Thick — .472 in /12 mm Strength kN— 25 kN (5,620 lbf)