Katrinkles Flower Acrylic Stitch Markers Set with WEBS logo is a colorful pastel set of adorable stitch markers that will surely make your knitting extra fun. The set has stainless steel rings with a 9.50mm inner diameter that is large enough to fit over US 11 needles but not too large that they are not comfortable to use on smaller needles. The stitch markers are approximately ¾” wide by ¾” long and ⅛” thick.