Clear acrylic with non-slip gripper squares. It starts with 2 Moda precuts, stitches up quickly and looks great in any fabric collection. Add our L-shaped ruler to position the charm squares and cut the blocks. It's the only tool you need. Color: Clear Made of: Plastic Use: Quilting Ruler Size: Approx. 2.5in x 10in x 5in Included: One Ruler