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Bright blue pulleys for easy viewing. Exceptional quality for the price. This set is ready to use right out of the box and takes up less space than the traditional pulley demonstration apparatus. Effectively teach about pulleys from a magnetic whiteboard. Extra strong magnets hold pulleys in place so they do not slide. Easily demonstrate mechanical advantage (1, 2, or 3) and an Atwood's machine. Create a dynamic interactive lesson by incorporating the pulley system directly into free-body diagrams, equations, or calculations. The 3 standard pulleys and 1 double-hook pulley are 52 mm in diameter. Instructions include activities to teach simple machines, efficiency, mechanical advantage, or free-body diagrams.
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.