Take the CD-110 and multiply it by 2 and you get double the capacity and double the cool. The 100% steel construction, with an incredibly durable powder coat finish makes it as strong as it is unique. Steel slider divider on each tier keeps CDs in place. This wall mount rack includes 2 wall hangers with nails that drive in at an angle, which use the weight of the rack to hold them tight. Anchors may be hidden from view by installing on second rod from top. Note: the hangers are meant for sheetrock or wood walls, other wall substances may require additional hardware that is not provided. Ships unassembled and takes 20 - 30 minutes to put together.