Rectangular Block - Glass, Made from imported optical glass with optically worked surfaces, All angles accurately worked with edges slightly bevelled and glass free from bubbles, Size: 125 x 65 x 18 mm
Diffraction Grating Slides, 500lines/mm, Highly efficient embossed Holographic Optical Elements, For the direct viewing and analysis of spectra from different gas tubes and other light sources, Use in conjunction with colored film gels, Dimension: 2x2in
Small Motor with Leads and Mount, Adapter Pin, AA Single Battery Holder, 1.5-3V Mount, Motor Shaft Diameter: 2.3mm, turns at the perfect speed for most projects. Use these for motor powered, cars, boats, scribble bots