What a piece of crap. Only 1 of the first 4 desk pieces were marked. The directions are so vague as to be unusable. I just finished assembling 4 separate items from Amazon and had no problems at all. The phillip head screws that I've used so far have been manufactured so poorly that my new and used screw drivers don't work with them. I hope the next pieces I work with are marked clearly and are easy to identify. If not, I may just eat the 150.00, throw this piece of crap in the dumpster and order something from Amazon. Just take my words as fair warnings and stay away from anything manufactured by this manufacturer , it's JUNK!!