10 Paperboard Slim Single CD / DVD Mailer - 5"x 5" Self-Sealing Shipping Sleeves with Flap #CDBC05PB - Great for Shipping a Single Disc or any Small, Thin Items! 5" x 5" Paperboard CD Mailer - Perfect for Mailing 1 CD or DVD! Self-Sealing Flap makes shipping quick and easy!