Made from Flourescent Acylic which gives the appearance of a lighted edge! Package includes 5 sizes with measurement being at the widest point, 2", 3", 4", 5", 6". All writing on the items is laser engraved so it will never rub off! These templates are 1/8" thick made for marking and cutting, NOT for long arm quilting. Since the center is hollow on all but the 2" these work great as a guide for fussy cutting or for use in scrapbooking and crafts. Made in the USA in Arizona.