Our optical bench is specifically designed for optics demonstrations and basic experimentation Includes light source 1- 10cm concave lens 1- 20cm convex lens 1- 30cm plano-convex lens 1- 10cm plano-concave lens white screen plastic grounded screen candle holder 5- riders LED lamp 2 -side legs 1 –lens holder slit holder fitted with 1 cut slit This is a product intended for the educational market. Step-by-step Instructions are not included. For consumers requiring instruction and application of this unit
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