ALVIN Portable Parallel Straightedge Board
Professional-quality, portable 18x24" drawing and drafting board with built-in parallel straightedge. Aluminum straightedge with soft, rubber edges for enhanced grip, comfort and control. Straightedge glides smoothly up and down the board while the cross-wire and pulley system underneath keeps it parallel in any position. Crystal clear acrylic blade is 0.12" thick and includes inking edges underneath to minimize smudging. Blade clearance is 3/16" for use with foam board, cutting mats and more. Straightedge has brake mechanisms on each end for secure, positive locking in any location on the board. Smooth, white melamine surface for bump-free drawing. Board is 0.63" thick for strength and durability. Features two, 3" metal folding legs at the top so the board can be used in an incline position. Rubber grip tracks underneath allow the bottom of board to overhang a table edge up to 8". This increases the working angle and brings the drawing surface closer to the user.