Streamline the process of cutting quilt pieces with this Omnigrip Non-Slip Quilter s Ruler. It allows for accurate cuts every time with both straight-edge and rotary cutters, and has and extra 1/2 inch on 2 sides for seam allowances. Its non-slip back helps it stay in position as you cut, reducing or eliminating costly miscuts and making cutting more efficient.Neon markings on this ruler enhance accuracy, and its clear design lets you see the material beneath it as you work. Made for right or left-handed use. This package contains 1 - 11.5 x 11.5 inch ruler. Made in the USA.