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: 30 minutes. Tools Required for Assembly (included): Allen Key THIS SIDE IS BOTTOM OF CURETTAGE /N a4 V2V oA Step Lay the 2*side frames (C/D) down, and attach 1*connecting bar (E), Use Allen Key (H3) to lock 2*Allen bolts (H2) from the both sides.