{"product_id":"eisco-labs-simple-machines-block-tackle","title":"Eisco Labs Simple Machines, Block \u0026 Tackle","description":"\u003cp\u003eThis wooden machine has a sturdy wooden construction ideal for classroom use. This apparatus can model how the use of several pulleys increases ones mechanical advantage. Students can use this both qualitatively and quantitatively and its design lends itself easily to inquiry based activites. Includes an instruction manual to fascilitate student and teacher use of the apparatus.\u003c\/p\u003e","brand":"EISCO","offers":[{"title":"Default Title","offer_id":48425599041692,"sku":"WBTOYB00FK2UYW2","price":44.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/9904\/0668\/files\/719LiGzPaSL.jpg?v=1794549703","url":"https:\/\/toytooth.com\/products\/eisco-labs-simple-machines-block-tackle","provider":"Toytooth","version":"1.0","type":"link"}