- Metal copper clip for hanging up posters and prints Metal clip made from copper coloured stainless steel with a shiny finish. This metal clip is perfect for hanging posters or decorations. One clip is suitable for a small poster, but you can also use two clips to hang a larger artwork. The maximum opening of the clip is 25 mm. The hole in the clip makes it easy to hang it on a wall, and it will add a chic and minimalistic style together with your posters. Note that this clip is sold individually. Size: Medium (50 mm wide) Measurements: 50x47x30 mm Material: Stainless Steel