Displays2go Wire Shelf Label Holders with Tooth-Like Gripper, PVC Plastic - Set of 500, Clear (GRIPRWRFL) Clip-on design attaches to 10mm round wire racks and basket edges. Hangs a sign in flush position. Tooth-like gripper has a firm hold on a displayed sign. When placing an order, 1 unit equals 500 gripper sign holders. Displays2go SKU#: GRIPRWRFL