Anodized version on the HUIT with anti-burn tab for holding the device when it is hot from a long or rapid descent. Square shape to reduce twisting of the ropes and formation of a lark's head hitch High strength forged aluminum Small hole 
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For descending on single or double ropes. Square shape reduces twisting of the ropes and formation of a lark's head hitch High strength forged aluminum Small hole can be used with thin ropes if necessary, or as a belay plate Specificat 
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