{"product_id":"iecms0019-01-iec-bell-jar-and-ringer-full-experiment-kit-each","title":"IEC Bell Jar and Ringer Full Experiment Kit, Each Each","description":"IEC Bell Jar and Ringer is used to illustrate the nature of sound waves by demonstrating that sound does not exist in a vacuum, It disappears as air is pumped out of the bell jar, Requirements to operate: Electric Vacuum Pump and 2 x AA Batteries and Tubing (Not included).","brand":"Iec","offers":[{"title":"IECMS0019-01","offer_id":46000347054324,"sku":"IECMS0019-01","price":174.84,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/7326\/5908\/files\/IECMS0019-01.png?v=1761585613","url":"https:\/\/www.livingstone.com.au\/products\/iecms0019-01-iec-bell-jar-and-ringer-full-experiment-kit-each","provider":"Livingstone","version":"1.0","type":"link"}