Easy Marine Easymatic 1 Lower Block 4:12:1 with Cross Block & Double Servo Cleat 93101 Easymatic ~ a mainsheet system with two gears. Thanks to the patented easy double servo cleat it is possible to make this revolutionary mainsheet system.Easymatic is available in series 1 ~ boats up to approximately 10m ~ 33ft and in series 2 ~ boats up to approximately 13m 0 42ft. The Easymatic system consists of an easy double cleat and a number of easy super blocks. The bearings are the same as in the roller bearing blocks. An extra large bearing diameter allows more rollers and offers a larger load carrying surface with very little friction. The Endless Main SheetBy splicing the two rope ends of the main sheet you obtain the most effective easymatic system. The wear on the rope will be divided over the entire length and you will never be short of rope to ease through either cleat. Splicing instructions are supplied with all easymatic blocks. Easymatic 1 Systems4:1 2:1 Blocks Required: 93101 or 93101 ~10 or 93101D and 93112C6:1 3:1 Blocks Required: 93102 or 93102D and 931038:1 4:1 Blocks Required: 93104 and 93102 ~20 Weight: 550gBreaking Load: 1000kgWorking Load: 500kgMax Line: 8 ~10mmMax Boat: 10.15m ~ 33ftSheave Diameter: 6038x14