Staedtler 660 Mars College Drawing Board Drafting Head For use with the Staedtler 661 A3 drawing board and Staedtler 661 A4 drawing board ; Single-handed use ; Stop / Go push-button for easy setting a...

Staedtler 661 Mars College Drawing Board With parallel drafting arm, with double-sided scale ; Convenient single-hand double locking mechanism for setting at any position on the rail ; Twin rail for...