• Parallel drafting arm with double-sided scale
• Convenient single-handed double locking mechanism for setting 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 - securely holds more than one sheet at a time
• Scale with needle hole for precise compass radius setting

• Made out of sturdy, break-resistant plastic

• With non-slip rubber feet

• Accessories:
  Mars drafting head
  Mars drawing board bag LR 661 13

Art. no. 661 A3