b"Two-Speed Mainsheet SystemsHarken gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use less line than traditional gross-trim/fine-tune systems. For fast trimming, pull both tails of the mainsheet. To fine-tune or to trim using a higher purchase, pull a single tail.Two-speed mainsheet systems come in three configurations for boats from 6.5 m to 11.8 m (22 - 39'), with mains as large as 32.4 m2 (350 ft2). (400)(385)System332System383(401)(386)SystemsLineMax mainsail areaPart Min Max End-boom Mid-boomNo. Description in mm in mm ft\x1f m\x1f ft\x1f m\x1f3323:1/6:1 self-contained system*5/1683/81024022.318016.93834:1/8:1 self-contained system*5/1683/835032.427525.5 10 *Line not included.ComponentsSheave Part Primary Secondary Length WeightNo. Description in mm in mm in mm oz g385Double fiddle376447 3/419721595 1 3/4 386Double fiddle/ratchet/cross block/412 Cam-Matic3762 1/4, 1 3/457, 4411 1/2292371049400Double/cross block32 1/4579 1/224122625 76 401Double fiddle/ratchet/412 Cam-Matic3761 3/4447 1/418431 885 39"