Harken (76mm) 3 inch Hexaratchet Blocks Hexaratchets® grip loaded sheets, yet allow line to be eased with complete control. Fast trim and release under high or low loads. Ratchets feature Hardkote-anodized, Teflon®-impregnated eight-sided sheaves machined from solid aluminum for strength and corrosion resistance. Free-rolling Delrin® ball bearings, sheave and sideplates UV-stabilized with carbon-black additive for maximum protection. High-strength stainless steel straps reinforce blocks. Use 044 reverse ratchet with the 009 single, and 050 single/becket on spinnaker and jib sheets where ratchets must rotate in opposite directions and on/off switches face up. Use for: Mainsheets Jib sheets Spinnaker sheets