The Little Hexaratchet allows crew to hand hold sheets up to 10:1 holding power. These blocks feature and eight-sided sheave machined from solid aluminum for strength and corrosion resistance. Low friction Delrin ball bearings allow fast trimming under high or low loads. The on/off switch operates under load. 7/16 LINE, MWL 500#, BS 2000# WT. 5OZ.