This piece arrived promptly.  When we first opened the box, the task to assemble felt a little daunting.  Inside the box were, what seemed like, "hundreds"  of pieces of MFD (Medium Density Fiberboard) and a bag of attachment pieces.  It took my husband and brother 3 hours to complete the bookcase.  We love it though.  It went together well and looks nice and airy.  We use it to hold baskets that store grandkids play things - little toys, crayons & markers.