DIN A3 drawing board\n\n- With parallel drafting arm, with double-sided scale\n- Convenient single-hand double locking mechanism for setting at any position on the rail\n- Twin rail for especially smooth, even gliding of the ruler\n- Colour indicator shows whether locked or unlocked\n- Sheet clamping strips on both sides of the drawing board for fastening of paper\n- Scale with needle hole for precise compass radius setting\n- Made of sturdy, break-resistant plastic\n- With non-slip rubber feet