Large diameter drum in System 3100 increases the power to reef large headsails in heavy winds. Low-friction bearing inserts eliminate metal to metal headstay contact for less noise and easier turning. Stainless heli-coil inserts insure that you'll be able to take the furler apart, even after years in salt water.¥ 64' 7-1/2" provided system length¥ (8) 7' round, twin groove accepts #6 luff tape¥ 3/8" Torlon¨ bearings¥ Drum design: open/split, 4-3/8" diameter drum holds up to 90' of 3/8" line¥ Weight: 43 lbs. packaged furler, 65 lbs. and 20 lbs. packaged extrusionsNote: Fisheries Supply carries -00 models in stock so you may chose your appropriate eye and toggle configurations