The standard CD Jewel case is the most common and affordable CD packaging available. It is a 3 piece construction with a removable tray. The standard colour for the jewel case tray is black but it is available in several colours including white, red, blue and clear. The front of the standard CD jewel case can hold a booklet of up to 32 pages. The back of the jewel case normally holds card, printed one side, with two spines. The card may be printed on both sides if a clear tray is used. As seen in many music stores, the jewel case may be cellowrapped to protect it from marking as well as protecting the inside content.