Half Hexagon Quilt Templates. 5" & 10" - Clear w/Center Guideline 1/8" Made in the USA- See pictures for more sizing information. Set does have seam allowance-Markings are laser engraved for long lasting use. Set has center guide line 1/8" Thick Acrylic Measurements overall 5 86", seamline is 5". Overall of larger template is 10.85" overall and 10" wide at the seamline.