The Clip Uni has the same function as the Double Clip, the difference between the two is that the former only holds the panel at one end and must be placed on the edge of the panel wall in order to give it a better finish. This accessory, with a matte finish, is sold in packs of four units, and cannot be sold separately, as with all the accessories in the Steel Cable Systems family. Suggestions for use To attach acrylic panels to steel cables .