Do NOT purchase this product.  The instructions are unclear and the so-called "pre-drilled" holes do not match the diagram.  Finally, the carton box that comes with the product is glued (instead of taped) so that you have to destroy the box to get the parts.  This means that it is impossible to return the product because you have no box to return this junk with.  Hmm, perhaps, this is the seller's plan all along.  Don't get me wrong, you still can assemble it if you have the right drill and the right drill bits.  However, it is going to take some efforts and careful measurements.