UGears UTG0087 Marble Run Stepped Hoist Erie Lackawanna - EL The Mechanical Multiplier consists of:

The Mechanical Multiplier consists of:

or workshop--repairing

AB or K brakes as appropriate

USED Brass

UGears UTG0087 Marble Run Stepped Hoist Erie Lackawanna - EL The Mechanical Multiplier consists of:UGears UTG0087 Marble Run Stepped Hoist Introducing the mechanical Marble Run Stepped Hoist, the second in a series of Ugears modular marble runs. This fun and fascinating wooden marble run features an ingenious 3 stepped alternating lift mechanism and a set of new features to hold your attention as you watch the marbles make their cyclical journey. Multiple tracks and elements are packed into a compact space in this DIY marble run. The model has a 3