The Whitney Brother Mobile Library Book Cabinet is agreat mobile library solution! Each side of this sturdy and functional two-sided mobile cabinet features three open divided sections [each 9.87″D x 11.75″W] over three large storage compartments [each 9.87″D x 11.75″W x 18.25″H] that provide an integrated storage and display solution for books, magazines, materials or other library supplies. Additionally, four pre-drilled holes located discreetly in the cabinet interior enable it to attach with screws [provided] to other WB1821 units [each sold separately] to create a complete mobile library storage solution! Mounted on four heavy duty non-marking 2-inch casters. Includes six self-adhesive vinyl nameplates and six 2″ x 3.5″ index cards for labeling. Constructed with no visible screws or joinery for a fine finished furniture look in safe, non-toxic natural UV finish that won’t yellow and withstands rigorous use. Made in USA. GreenGuard Gold certified. Lifetime Warranty.