Optical Presenter Products Category : Optical Products > Optical Instruments INQUIRY Details L style iron plates with printed scale,semicircular,double convex,double concave,trapezoid,triangle,sliver,three mirror lens and three semiconductor laser illuminants. With magnet on the back. Send Inquiry Name:* E-mail:* Tel: Content:* Verification Code:* (All * must be filled in) [ Previous: ] [ Next: ] Related Products Light Refraction and Reflection Three-Color Light Source D Three-Color Light Source B The Poisson Bright Spots Presenter Optics Demonstrator Optical Glass Brick Newtons Seven-Disc Newtons Rings