This is a collaboration best album from DOUBLE, featuring popular tracks. - Title: DOUBLE THE BEST COLLABORATIONS - Artist: DOUBLE - Format: CD This is DOUBLE's best album, "The BEST Collaborations." It includes collaborations with artists such as Namie Amuro, and many others. It contains two discs with a booklet. The item will be packaged with bubble wrap and a waterproof bag. Please feel free to ask any questions in the comments. Thank you for looking.