Sew straight seams like never before! Simply attach your guide with it's built-in suction cups to your Sew Steady Table and away you sew. They are easy to remove and reposition for different seam widths. The 11" x 2" ruler will fit on all Sew Steady Tables. The 7" x 2" ruler is made for the Kangaroo and Arrow cabinet inserts; visit our furniture page for more information.