This is an adapter that allows your IMAC to be mounted to any of our monitor stands using the VESA 75 x 75 bolt pattern. This adapter can be used with the Thunderbolt Display, Apple LED Cinema Display and iMac. A very innovative solution to bridge the VESA Stands with the iMac Computers. The color is aluminum/silver as pictured and includes everything you should need (minus the mount you will need to purchase separate).