HollowBlock2

Whittaker Mountaineering Verified independent store

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Sterling's Bestselling Friction Hitch and Autoblock Have Been Redesigned with Stronger Aramid Fiber The 6.8 mm HollowBlock2 is made of 100% Technora® fiber for increased abrasion r esistance and improved durability. Its gripping ability comes from the unique hollow-braid construction, for use as a Prusik or Klemheist knot on ropes 7 mm or larger. Show more