{"product_id":"ph0742ah","title":"Resonant Tuning Fork Pair on Pine Boxes with Mass and Mallet, 440Hz","description":"\u003cp\u003eUsed to demonstrate beat frequencies and sympathetic resonance, this pair of 440Hz steel forks sits on pine resonance boxes (7.5 x 4 x 2.5 inches) with one fork carrying an adjustable tuning mass.\u003c\/p\u003e","brand":"Eisco Labs","offers":[{"title":"Default Title","offer_id":1298721288,"sku":"PH0742AH","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/0623\/files\/xpljo1myvuaavh1ouyk6.jpg?v=1776556932","url":"https:\/\/www.thelabstockroom.com\/products\/ph0742ah","provider":"The Lab Stockroom","version":"1.0","type":"link"}