These rulers were designed to give you ultimate accuracy when it comes to measuring, marking and cutting your pieces out. Made from a durable, premium quality acrylic plastic and laser cut for a smooth edge that allows for easier, deeper cutting of fabric layers. The patented double line effect is printed in black and yellow which allows the user to see the grid on both dark and light fabrics. Designed for left and right handed users. 1-inch by 6-inch, small and versatile for use with sewing, crafts, quilting and weaving.