Hartle’S Optical Disc Magnetic With Light Source

Similar To Cat. No. 1110810, But Supplied With A Metallic Board With Side Supports. Ray Box And All Refractive Components Provided With Strong Magnets At Their Bottom For Locating Of A Metallic Board. Includes Set Of 7 Optical Components - 1 Each Of Rectangular, Trapezoidal, Semicircular, Equilateral Triangular, Right Angled Triangular, Bi-Convex And Bi-Concave. (Hartle’S Optical Disc Magnetic With Light Source)