Isomars Quilting Ruler 12'' ruler is made from a durable premium quality acrylic plastic and laser cut for a smooth edge that allows for easier deeper cutting of fabric layers. It is designed to give you ultimate accuracy when it comes to measuring; marking and cutting your pieces out. Package contains one 12 by 12-inch ruler. Designed for left and right handed users. Used for sewing; scrapbooking; crafts; weaving and more.