{"product_id":"complete-chalkboard-ray-box-kit","title":"Complete Chalkboard Ray Box Kit","description":"This versatile, comprehensive Ray Box Kit allows teachers to demonstrate all geometric optics principles to the whole class. The Ray Box and all-optical accessories can be firmly held to a metal chalkboard or whiteboard. The kit comes with a robust plastic box with a 12V halogen lamp, a cylindrical lens, a set of 5 slit diaphragms, a set of 7 color filters, a set of 7 color screens, two black screens, a set of 7 acrylic lenses, a plane mirror, a mirror with variable curvature, a rectangular reflection cell, and a power supply. Instructions included. 11”x12”x4”. Ages 13+","brand":"Supertek Science","offers":[{"title":"Default Title","offer_id":49975057350933,"sku":"SPSPH30376S3","price":184.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/PH30376.png?v=1781497381","url":"https:\/\/unitedsupplycorp.com\/products\/complete-chalkboard-ray-box-kit","provider":"United Supply Corp.","version":"1.0","type":"link"}