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Comprises a set of components from which pulley blocks of many different configuration may be made up. This versatile set is an economical alternative to providing a similar range of options using separate discrete pulleys. Set contains 15 plastic pulley frames, 5 each of single, double and triple sheave, each provided with a removable bearing pin and a pair of hooks. 30 plastic plain bearing pulleys, 10 each of diameters 25,38 and 50 mm.
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