PREPARATION Before beginning assembly of product, make sure all parts are present. Compare parts with package contents list and hardware contents list. If any part is missing or damaged, do not attempt to assemble the product. Estimated Assembly Time:10 minutes. Tools Required for Assembly key. Step 1: Assemble 2 leg{left) (B) to the underneath of the cabinet (A) in diagonal position facing front left , Using Allen key (H2) to lock with as picture.