We've been selling our popular Table Clamp mounting option for about 8 years now. A while back a customer needed to mount the flexible gooseneck perpendicular to the table clamp rather than inline with the original hole. So we took them to a local machine shop and had another hole added. This makes the Table Clamp so much more versatile so we decided to implement this improvement to all of our new Table Clamps: With this additional attachment hole the Table Clamp can be used, for example, to attach a flexible gooseneck arm vertically from a bed headboard, vertical bed frame, etc. Each hole has a rubber pad to protect your attachment surface. The Table Clamp can attach to any flat surface between 1/4" and 1-5/8" thick. If you have a wider surface check out our larger Megaclamp. As always if you have a special need or product suggestion please contact us. Our best ideas come from our customers.