Check the listing for details. Eisco Labs 42" Aluminium Optical bench with U.S Light Source. Condition: New. Listed at 89.29 USD. Eisco Labs 42" Aluminium Optical bench with U.S Light Source This 42" Optical bench is constructed with a square section aluminium 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 hobbist. Comes with LED 12V Light source. 1 double concave lens 1 double convex lens 1 plano convex lens 1 plano concave lens 1 LED 12v Light source with United States 110v plug 1 Candle holder10v plug Product Details BrandEISCOManufacturerEISCOProduct TypeScience Classroom Optics KitsMpnPH0616EMS 42" Optical bench is constructed with a square section aluminium tubeRail has 1cm graduations up to 100cm.Comes with LED 12V Light sourceOptical bench can be used to measure the focal length of a lens. Prefect for Physics experiments or hobbist Check out my other items. -Powered by