{"product_id":"simple-machines-pulley","title":"Simple Machines Pulley","description":"When a cord is run over a pulley, the direction of the applied force is changed. This is a very useful principle in many different machines, and a basic principle that shows up again and again in physics classes. This device lets students explore and understand this basic principle. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized.\u003cbr\u003eProduct Type: Simple Machines\u003cbr\u003eRecommended Grade: Grade 4+\u003cbr\u003eRecommended Age: 9+ Years\u003cbr\u003e GRP:ERGO","brand":"Learning Advantage","offers":[{"title":"Default Title","offer_id":45519255929064,"sku":"er_CTU506","price":31.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0242\/5379\/2308\/products\/33bb41a72416b896dee6b62643d3fb6b6d7556bf.jpg?v=1709124829","url":"https:\/\/www.shelhealth.com\/products\/simple-machines-pulley","provider":"ShelHealth","version":"1.0","type":"link"}