These rust-proof eyelets are made of silver-colored brass and have an inner diameter of 9 mm. They are an easy way to add embellishment to your favorite clothing or home décor. These eyelets should be applied tightly so that they do not turn- this prevents the eyelet from tearing out. Prym offers eyelets with washers for use with the VARIO Creative Tool (390903) and the matching tool set (673127).