DRITZ HOME-No sew small gromemts. Comes in 3 natural colors (black brush silver or matte gold) options for coordinating with all materials. Grommet openning: 3/8" diameter grommet overall: 3/4" diameter. Package contains 12 sets. For use with decorative hooks. Grommets are machine washable. Do not iron tumble dry or dry clean. Also can be used as an accent throughout curtain as an overall creative twist. Definately a product with creative possibilities. NO TOOLS REQUIRED.