Design: Each sewing clips opens wide hold layers of fabric and the clip base is flat for easy feeding to the presser foot. No trace clip: Anti-slip glue on the front of the clip will not leave marks on the leather. Package include: The package include 10 piece of leather craft sewing knitting clips. Material: Leather craft sewing knitting clips made of stainless steel material, sturdy and durable. Function: Diy hand making crafts, fixing leather crafts, without any trace.