Wonder Clips are 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's easy to see and easy to find when dropped on the floor! Works well with sergers. 10 pack Assorted colors, 2 of each color. Features 1/4" and 1/2" seam allowance marks on base of the clip.