Its smooth motion file drawers slide with ease on maintenance free metal runners that are essential for putting away bulky quantities of paperwork, and the top drawer includes a lock, complete with two keys, which can be taken out in both positions.integrating two individual drawers that are perfect for necessities like stationery and space for over 140 foolscap files, these are placed on the top of the drawers and glide from front to back. Also, sturdy draw bases are added for easy removal of documents making this a great advantage for storage of loose items, another bonus is that this four drawer combination unit is contemporary and fashionable which makes it a great aesthetic for your home office.your furniture will arrive fully assembled. Please be aware that this product is of superior quality and therefore heavy. You may require assistance for room placement. . Top drawer privacy lock with two keys. Arrives fully assembled. Solid 18mm back panel. Approximate package dimensions mm h 10250 w 4790 d 5400. Package weight 50kgplease note that this product is delivered direct from our supplier and may take a little longer to arrive