We encourage you to pre-order your items in advance to help secure your item when it arrives in stock, but we ask that you be Complete sure that you want the item before placing a pre-order. Please refer to the measurement. The tiny measuring error is allowable in the normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.If you need return, please contact our customer service representative within 7 days after you received the item, let us know the detailed problem and send us some pictures for confirmation. We strive for 5-star service by providing high-quality goods and perfect service. (Positive) feedback is simply what we seek for.