The technology of the future is here todaynow available to non-engineers! Build Your Own Fuel Cell contains complete, easy-to-follow illustrated instructions for building multiple types of proton exchange membrane (PEM) fuel cells, as well as templates for six PEM fuel cell types, including convection fuel cells and oxygen-hydrogen fuel cells, monolithic and stack configurations. Two different low-tech fuel cell construction methods are covered: one requiring a bandsaw and drill press, and the other requiring only basic hand tools. Anyone with minimal skills and tools can produce high-quality fuel cells from readily available materials. This electrochemical device produces no pollution and has no hazardous emissions. Features precise workmanship, compact size, portability, and ease of use. Color: as shown in photo. Material: plastic. Package includes: 1 x PEM Hydrogen Fuel Cell. Please note: other items shown are not included. Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance: +/- 1-3 cm.