The Hollow Block is a unique sewn prusik or klemheist made from our RIT 900TM cord. This hollow braid cord is made of 100% aramid fiber, giving it added strength, durability and gripping power on rope 7mm and larger. It is sewn with Sterling's proprietary sewing pattern. a MBS: kN3,147 14kN Note that this item of climbing safety equipment is non returnable. Please call us toll free at 877 236 8428 or e mail bentgatebentgate.com with any questions.
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