A set of various construction and building vector icons, including brown cements bag, a tape measure and pencil, a construction tool box, bricks and mortar, a safety helmet, and a leveler. These are fairly well done and will fit into any promotional material or manual.
This is a template. It may be used for any educational purpose in order to illustrate the size of things you wish. For that matter, you may insert any openclipart within the boxes ;)