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K'Nex Levers & Pulleys Kit
$30.95
Discover how eight simple machines work as you construct a balance, wheelbarrow, scissors, a block a
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Pulley, Single, 48mm
$1.70
Constructed with a low-friction plastic wheel (48mm diameter), a steel housing, and hooks on both en
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Pulley, Double Tandem, 48mm
$2.70
Constructed with two low-friction plastic wheels (48mm and 38mm diameter),a steel housing, and hooks
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Pulley with Table Clamp
$7.50
A 40mm plastic pulley mounted to a clamp that can be attached to any board or table top up to 3cm th
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Pulley, Double Parallel, 48mm
$2.70
This pulley is constructed with two low-friction plastic wheels (48mm diameter), a steel housing, an
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Pulley, Triple Tandem, 48mm
$2.70
Constructed with three low-friction plastic wheels (48mm, 38mm, and 28mm diameter),a steel housing,
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Pulley, Triple Parallel, 48mm
$2.70
Constructed with three low-friction plastic wheels (48mm diameter),a steel housing, and hooks on bot
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