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    Pulley Block Set Physics Experiments Portable Educational Toys Teaching Props

    • Item No : 404963680757
    • Condition : New
    • Brand : Unbranded
    • Seller : cavetreasureus
    • Current Bid : US $14.03

    • * Item Description

    • Can be used to demonstrate the principle of pulleys and how they work in real machines. It's just take you 1 minute. We'd like to settle any problem in a friendly manner. Because the unpaid dispute will not be closed automatically, and we may ignore it.
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