{"product_id":"stem-nightlight-15cm-upgrade-newtons-cradle-steel-balance-ball-physics-pendulum-toys","title":"STEM Nightlight 15cm Upgrade Newton's Cradle Steel Balance Ball Physics Pendulum Toys","description":"\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003cbr\u003eDimension: Approx.15*11.5*15cm (LxWxH)\u003cbr\u003eWeight: 308g\u003cbr\u003eColor:As the picture\u003cbr\u003eMaterial: Plastic and Nylon\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e\u003cbr\u003eThe set of  balance balls is particularly suitable for the place such as office, desk table,computer table etc.\u003cbr\u003eIt is a best and useful gift for children to arouse his\/her interest in physics.\u003cbr\u003eNot only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.\u003cbr\u003eFriction and damping effects are also observed.\u003cbr\u003ePull up one ball and release,only one ball in the other side moves,pull up two,two balls will react, and so on.\u003cbr\u003eWhen you are sleepless,just move your eyes with the bump of the ball,then you may slowly,slowly falling asleep.\u003cbr\u003eWatching the bump of  the ball is a special way to pass the dull hours.\u003cbr\u003eMaterial:Solid steel ball,Nylon plumb line,ABS plastic frames and base.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePackage Included:\u003c\/strong\u003e\u003cbr\u003e1 x Newton's Cradle Balance Balls Desk Toy\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/7D\/70\/2f9eaa56-26b2-4659-b2b0-b59d9fa29158.jpg\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/29\/54\/b7e38596-3c91-4167-ad27-fe02a79b89ab.jpg\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/6A\/34\/b872bc99-72e3-4258-bcdc-c8d9d5447f1b.jpg\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/13\/6D\/24398f70-15af-4827-89ca-a78e6cc970c8.jpg\"\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/F5\/81\/3ecf6d2e-4fa7-4a4a-a9d0-598a88dd242c.jpg\"\u003e","brand":"Shopify","offers":[{"title":"Default Title","offer_id":13959952400428,"sku":"1386167","price":900.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/4f70f1f1-5bc9-411d-804c-26277b2bb81b_efe00c04-f706-4aa4-8272-86f8a2f275e0.jpg?v=1589975850","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/stem-nightlight-15cm-upgrade-newtons-cradle-steel-balance-ball-physics-pendulum-toys","provider":"Electronic Pro ","version":"1.0","type":"link"}