Seam Allowance Additions (Add-Ons) for Guidelines Rulers

Attach these Purple, Green or Red Additions to the Edge of Your Guidelines Rulers and Automatically Add the Precise Amount of Seam Allowance for Squares, Half or Quarter Square Triangles When Cutting. This version is for Guidelines Rulers only. They lock into holes in the corners of the Guidelines Rulers. Click here for the regular ruler version. Includes 2 suction cups to keep it level with the rulers edge when cutting. Built-in Finger Guards protect your fingers when cutting. Made of virtually unbreakable polycarbonate. Comes with an 8-Page instruction booklet