Made from 1/4in thick acrylic. Meet Elvira, your new favorite curvy tool! She not only looks beautiful, she's quite handy when quilting wavy lines or continuous curve lines. Features: Creative Grids Grip prevents slipping Black and white dashed guide lines are visible on all fabric colors Designed to fit in the palm of your hand, it is easy to manipulate and control Curved edges allow for versatile designs. Elvira can quilt multiple arcs in multiple directions without rotating your quilt (or working from the back of your foot)! Use her for: quilting continuous curve blocks (2 inch squares are her specialty); adding a series of curves along a row of blocks; or quilting all sides of a square, no matter what foot you use! It is 1/4 inch thick so it works for domestic as well as longarm machines. To learn more, view a video demonstration. Total Size - 2-3/4in x 7-1/4in