Our pre-order option allows you to place your order for sold out items before these are back in stock.  Placing your pre-order will put you in line for the next available of this item.  You can cancel your pre-order at anytime before it ships, simply contact us to request to cancel if you choose to do so.  Most pre-orders are able to ship within 1 week.  High demand items slightly longer wait time up to around 2 weeks.  If you'd like an ETA on when your preorder will ship, simply contact us.