{"product_id":"ball-and-ring-expansion-demonstration","title":"Ball and Ring, Expansion Demonstration","description":"The Ball and Ring Apparatus is a visible demonstration of the expansion of metals. When the ball or ring is heated, the ball will not pass through the ring. When cooled, however, the ball passes through the ring freely. The ball and ring are mounted on an insulated handle.  Instructions included.","brand":"GSC International","offers":[{"title":"Default Title","offer_id":49507496788245,"sku":"GSC4-19801","price":15.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/4-19801.jpg?v=1761839024","url":"https:\/\/unitedsupplycorp.com\/products\/ball-and-ring-expansion-demonstration","provider":"United Supply Corp.","version":"1.0","type":"link"}