Laser Cut Mylar and Acrylic Templates for Quilting, Sewing and Stencils. 50- 2 inch Mylar Hexagons 50 2 inch Mylar Half Hexagons. 1- 2 inch acrylic Hexagon 1- 2 inch acrylic Half Hexagon. These Acrylic pieces do have the 1/4" seam allowance Guideline Holes. Hexagon Size is 1 inch along seam allowance lines. 2" Top to Bottom from seam allowances. Overall size is 2 1/2". Each mylar 1 inch piece is conveniently engraved with it's size for easy identification. Mylar pieces are sized to fit inside the acrylic template. Can be ironed with low setting. Half Hexagon acrylic piece is 2" along bottom seam allowance line. Just cut your material around the Acrylic template and you are ready to sew around the Mylar. These 2 shapes' seam allowance lines match up. -Mylar is a trademark of Dupont