A3 drawing board with parallel drafting arm, and double-sided scale

• Comes with convenient single-hand double locking mechanism for setting at any position on the rail.
• Twin rail for especially smooth, even gliding of the ruler.
• Colour indicator shows whether locked or unlocked.
• Sheet clamping strips on both sides of the drawing board for fastening of paper.
• Scale with needle hole for precise compass radius setting.
• Made of sturdy, break-resistant plastic.
• With non-slip rubber feet.