Sleevie Wonder (est. 2008) 5XL BOX SET outer sleeves x1 (one sleeve). Use over 4+" - 6"+ thick boxes. 4mil above average thickness. Thick, strong polyethylene plastic sleeves with an overhang. Protects from dust, dirty hands, oily fingertips, shelf wear, & minor impact + abrasions. Also preserves shrink wrap. Acid & lignin free, archival safe. Orders go out within 24 hours, USPS (worldwide). Buy other sizes too : ) Support Sleevie best w/ multiple items @ checkout ♥