We are 100% transparent with the measurement of our product on the product page to help you to do the measurement before making the purchase if you need to. We also send an email reminder immediately after you have completed your order to remind you once again to make sure that you have purchased the correct length. In the email we have mentioned that there's a 4 hours window to inform us if you wish to change the length of the bar.We trust that we have provided sufficient information both before and after purchasing hence we are not able to do any return. refund or exchange due to the wrong length purchased.