The smooth feel and texture of the Dritz Fashion Grommets provides a professional finish and a decorative detail to garments, bags, purses, and other projects. The grommets include a plastic insert that is placed on the post of the grommet on the wrong side of the fabric . The insert provides extra stability and support, making the grommets suitable to used with only 1 layer of fabric. The washer is placed over the insert and applied with the hand tools and a hammer. The result is a smooth finished grommet that is suitable next to your skin or other fabric surfaces.Details:Black1/2"Kit includes the grommets and the hand tools for applicationMachine washable and dryable