STAEDLTER 661 A4 Mars Drawing Board for Technical DIN (‎37.8 x 30 2.2cm)

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