Propellers, Pulleys and Gears
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Pulleys
From £2.45
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Gears
From £2.52
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Steel Springs
£12.99
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Motor Clips
£3.78
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Motors
From £9.49
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Pulley Wheels Classpack
£18.34
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Wooden Cams
£15.50
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Spring Balances
£25.29