Artec unit conversion ruler (set of 10) 4521718750392

Unit conversion is clear at a glance! A ruler that visualizes the conversion of the length, weight, area, volume, and liquid volume of objects. Unit conversion is obvious at a glance! A ruler that visualizes the conversion of the length, weight, area, volume, and liquid volume of objects. 170×40×6mm Unit conversion ruler x 10 pieces 200g ABS