Extra large size stores 25% more than other toy organizers Removable toy storage bins for playtime and easy clean up Sturdy engineered wood construction frame reinforced with steel dowels, 20 pound weight capacity per level 16 durable plastic storage bins, 12 standard and 4 large (equivalent to 8 standard bins) interchangeable storage bins. BPA and phthalate free. Product sizing - 41.50”w x 11”d x 31.25”h; standard size bins: 11.50”L x 8”W x 5.25”H; large size bins: 16”x 11.50”W x 5.25”H Comes disassembled. Phillips screwdriver required for assembly.. Comes with 16 original screws.