Check the listing for details. Mylar 3" Hexagon 51 Piece Set - Quilting / Sewing Templates. Condition: New. Listed at 34.68 USD. Mylar 3" Hexagon 51 Piece Set - Quilting / Sewing Templates Made in the USA! Laser Cut Mylar and Acrylic Templates for Quilting, Sewing and Stencils. 50- 14 mil thick Mylar Templates. 1 -1/8" Thick 3 inch Hexagon Acrylic Template Each Mylar 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. Mylar Pieces Measure 1 1/2" inches per side. These are measured differently from some of our other offerings. The Acrylic piece does have the seam allowance and Guideline Holes. Acrylic Hexagon measures 1 1/2" along seam allowance lines. Just cut your material around the Acrylic template and you are ready to sew around the Mylar. -Mylar is a trademark of DuPont