Actual ribbon measures slightly over 3/8" at 10MM. 

May Arts’ woven GN series grosgrain is a woven Petersham-esque grosgrain. Because it lacks the traditional thick edging of an American style grosgrain, it is softer and more supple. The weight and pliability of the ribbon makes it versatile for everything from gift wrap to sewing to scrapbooking. Sewing uses can include use as a trim on everything from blankets to tote bags, dresses, and more since it can be ironed on an edge. Grosgrain is also a preferred ribbon for store packaging. Grosgrain ribbon is also great for hair bows.