A robust, quality optical bench, with the rail extrusion and riders manufactured from solid aluminium. This 1-metre long bench has cm and mm white scales mounted along the length of each side of the rail, for easy reading and allowing the riders to be placed precisely at varying positions along the rail. The bench comes with integral 3-point levelling feet, for steady and level mounting on a bench top or table. Supplied complete with: LED light source; Power supply; Mounted letter object: Aluminium riders for mounting the different components; Lens holders (40mm dia.); A range of different aperture slides; Plane mirror (40mm dia.); Graduated white screen: Translucent screen; 1-metre aluminium rail with cm and mm scales.