This straightedge kit from Martin Prodraft provides exceptional control and stability to help you perform at your best. It is unique in that it is the only parallel straightedge board to feature an aluminum body straightedge, providing an exacting work area. Ribbed strips allow for the board to be secured to a table's edge while bringing work comfortably onto the lap of the user. Two easy to adjust knobs on both sides of the board keeps the work exactly parallel and in place. It's large 16x21 inch work surface makes it versatile for a variety of applications. A convenient handle attached to the top of the board make it portable and easy to transport. This product is constructed to provide years of value, and comes with our low-price guarantee.