Displays2go Clip-on Sign Clamps with Ball Joint, Holds Cardstock, Set of 100, Black (2MEMOS4BK) When ordering, 1 unit equals 100 clip-on sign clamps Double clamp design for easy setup and temporary presentations Accommodates a maximum sign and edge thickness of 0375" Ball joint for angling a sign at the perfect degree Displays2go SKU#: 2MEMOS4BK