Loading... Please wait...The Ruler Betty comes with 1/4 in wide strips that you cut to your own specifications and adhere to your ruler. Made from the same great material as the Steady Betty mats, the strips will glide over your fabric, but grab your fabric and hold your ruler in place with little to no movement when you are ready to cut. Adhesive backed foam applies to the backs of rulers to prevent slipping while rotary cutting. Can be easily cut to size to fit ruler. 10 per package.