Assembly required; Assembly time: Approx. 30 - 40 minutes; Set of 2 storage boxes with wheels that make use of under the bed; Front board is made of pine wood (uncoated); Comes with a center divider that can be used to separate storage space; Interior is wood grain resin coating, making it easy to clean; Comes with casters that move in and out in the front and back; Drawer inner dimensions: Width 72.5 inches (38.5 inches (72 cm) x 38.5 inches (38.5 inches (12 cm) x 12 inches (12 inches (12.5 cm) x 12.5 inches (12 inches (12.5 inches (12.5 cm). 2.0 inches (5 cm). Sturdy construction with reinforced piers; Load capacity 33.1 lbs (15 kg).