Linex Drawing Board Head
Deluxe portable 11" x 17" drawing board in carrying case. All scales graduated in inches. Features include ruler on straightedge graduated in inches and two locking mechanisms for better stability. Clamps hold paper firmly in place. Perfect for sketching diagramming drafting and teaching. Optional drawing board head features ruler graduated in inches 15° indexing and precision adjustment of any angle. Inverse scale 0-90°. Locking system keeps the ruler in a fixed position. Usable as a hatching aid as well.