The Martin Pro Draft Parallel Straightedge Kit utilizes an anti-warp aluminum body straightedge for strength and stability. Notice the deep ribbed strips so that the straightedge can be adjusted over the table edge to bring the artwork into the users lap. Each side of the unit has large knobs for adjusting the straightedge to align with the artwork/drawing and stay parallel.
Dimensions: 3 inches high x 24 inches wide x 36 inches deep
Materials: Wood, steel
Model No: U-PEB2436B