ALVINŽ Double-Readout Map Measure

Determines distance in miles or kilometers on maps and plans by the scales indicated on the dial. Precise measurement--forward or backward. Follow curved lines. Registers up to 576 ft. in one revolution (1/16" scale), 288 ft. in one revolution (1/8" scale), 144 ft. in one revolution (1/4" scale) and 72 ft. in one revolution (1/2" scale).

Comes complete with sheath and instructions.