Hand-made and tested by the experts at Rope LogicMade with 38mm x 28mm Notch Rigging RingsCordura abrasion-resistant sleeve on each eye for increased lifespanMade with Samson Tenex-Tec or Tenex-Tec Pro low-stretch hollow braid ropeRope Logic products are rigorously tested in accordance with a 3-Sigma Process, which provides a much more accurate MBS rating than standard testing processes. Loads can be placed in compression on the tree, and trees can be removed safely and effectively The inner diameter of the ring is 28mm. The same sturdy build and adjustability of the very popular Whoopie sling, but with one large ring. Reviews For ROPE LOGIC 1/2 In. X-Rigging Ring Whoopie Sling Heavy Duty Rigging Straps & Slings Detailed Description, Brought to the Tree industry from the Marine industry by J. David Driver, the X MAN, the X-Rigging Rings are made of hard-coat... Rope Logic 1.5m 12mm Sterling Streaked Whoopie Sling with Ring from Honey Brothers. Working Load Limit: 1550 lbs. (6.89 kN) Adjustable from 3 to 5 feet, the X-Rigging ring whoopie sling can go from ground level diameters to the crown in your rigging systems A Notch Rigging Thimble #2 Large (28mm x 20mm) spliced onto a 1/2-inch 12 strand TREX Rigging Rope with a Whoopie Sling Can adjust from 3-5 ft.