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Prefect for Physics experiments or hobbyist\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis 42\" Optical bench is constructed with a square section aluminum tube which riders can move along tube easily. Rail has 1cm graduations up to 100cm. Comes with 4 riders for lens and slit holder. Optical bench can be used to measure the focal length of a lens. Prefect for Physics experiments or hobbyist. Comes with LED 12V Light source.\u003cbr\u003e\u003cbr\u003e1 double concave lens\u003cbr\u003e\u003cbr\u003e1 double convex lens\u003cbr\u003e\u003cbr\u003e1 plano convex lens\u003cbr\u003e\u003cbr\u003e1 plano concave lens\u003cbr\u003e\u003cbr\u003e1 LED 12v Light source with United States 110v plug\u003cbr\u003e\u003cbr\u003e1 Candle holder10v plug\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Eisco Labs","offers":[{"title":"Default Title","offer_id":6544596164,"sku":"PH0616EMS","price":9999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1027\/4949\/files\/ziaxzzex0cyyz2ndtmiy.jpg?v=1780341229"},{"product_id":"ph0572ag","title":"Glass Prisms \u0026 Lens Set, 7 Pcs - 13mm Thick - Wooden Storage Box","description":"\u003cul\u003e\n\u003cli\u003eSet of seven glass prisms and lenses. Set includes an equilateral triangle, semi-circle, trapezoid, 2 double convex prisms and 2 triangular prisms. 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Ideal for a variety of experiments in optics, light refraction, spectrometry and wavelengths. Great for photography lighting and distortion effects.\u003c\/p\u003eKit Includes:\u003cul\u003e\n\u003cli\u003eEquilateral Triangle, 3\"\u003c\/li\u003e\n\u003cli\u003eSemi-Circle, 3.5\" diam.\u003c\/li\u003e\n\u003cli\u003eTrapezoid, 1.3\" \u0026amp; 1.6\" legs\u003c\/li\u003e\n\u003cli\u003eDouble Convex Prism, 3.5\" with a 3.75\" inner radius\u003c\/li\u003e\n\u003cli\u003eDouble Convex Prism, 3.5\" with a 3.75\" outer radius\u003c\/li\u003e\n\u003cli\u003eTriangular Prism, 2\" x 1\" x 0.5\"\u003c\/li\u003e\n\u003cli\u003eTriangular Prism, 2\" x 1\" x 0.75\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eEisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.\u003c\/b\u003e\u003cbr\u003eEach product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. 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