A great alternative to pins, especially when working with heavyweight fabrics, piles and vinyls! It can hold layered sections of sewing projects such as handle connectors to handbags and piping without distortion. Holds quilt binding while sewing, and it is easy to see and easy to find when dropped on the floor! Works well with sergers. This package contains 50 1x3/8x5/8 inch wonder clips. Made of polycarbonate and stainless steel. Imported.