YOYOSTORE 100pc Round Eyelet with Washers Stamp Card Hole Fit Beads Apparel Scrapbook Making Tool 6mm 3/16" Hole Max Upside Inside diameter (Approx.): 1/4 inch (7.5 mm ) Hole Mini Inside diameter (Approx.): 3/16 inch (6 mm ) Outside diameter (Approx.): 3/8 inch (10 mm ) Material: Steel, Nickel plated Inclube: 100pc eyelet with Washers