Giving you the best grip for jugging icy, muddy ropes (think Denali’s West Buttress or some gnar-ed out fixed cord in the Fisher Towers), the nForce ascender generates more clamping force than conventional designs. The spacious grip accommodates gloves, and a 360-degree biner clip-in point allows full rotation of locking biners. Black Diamond - nForce Ascenders Giving you the best grip for jugging icy muddy ropes think Denali s West Buttress or some gnar ed out fixed cord in the Fisher Towers the nForce ascender generates more clamping force than conventional designs The spacious grip accommodates gloves and a 360 degree biner clip in point allows full rotation of locking biners