Keep playing it in and out for better boat speed. The Frederiksen Ultimate Ratchet gives you more holding power, reducing arm and back fatigue making you less likely to cleat sheets. Patented aluminum ratchet sheave incorporates extruded holes to give a more powerful grip that other sheave designs. Extruded aluminum design is a bit more expensive, but is lighter, stronger and holds better. APS Part No.
Line passes through mounting bullseyes on either end, sheave swivels side to side.
Cam arm angle is fully adjustable. Length is 5 inches. Great for halyard leads from the mast base, for boom blocks, or spinnaker halyards hoisting from the rear of the cockpit, pulling from the deck. APS Part No. This allows you to adjust a line and forget it.