These magnetic sign holders will benefit the sales floor. The mount is easy to apply to metal objects. These magnetic sign holders are ideal for displaying signage on metal. The mount can attach to vertical, horizontal, square or rectangular tubing. The sign holders versatility is great for visible placement of signage. Heres how the system works: 1) Choose size and style of frame that best suits your sign. 2) Decide which type of clamp will work best for your fixture: magnetic, spring, or C-clamp. 3) Complete the holder with the appropriate stem fitting and length.