{"product_id":"friction-block-and-surface-set","title":"Friction Block And Surface Set","description":"To understand the relation between friction and smoothness of materials consists of three wooden blocks measuring approximately 3-15\/16″ L x 2- 3\/4″ W with hooks. The first block has a polished side, the second has a sandpaper side, and the third has an aluminum side. Complete with the polished wooden base measuring 14″ L x 2-3\/4″ W.","brand":"Supertek Science","offers":[{"title":"Default Title","offer_id":49978153206037,"sku":"SPSPH10573","price":34.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/PH10573.jpg?v=1781570793","url":"https:\/\/unitedsupplycorp.com\/products\/friction-block-and-surface-set","provider":"United Supply Corp.","version":"1.0","type":"link"}