Adjustable Size: This zipper replacement kit corset is 3 piece set corset back kit, include 1 lace up and 2 buckles, the total length of buckle is 41cm(about 16"), lace-up lendth is about 350cm-400cm(WITHOUT Panel, Suitable for most dresses) Add an additional sizes to your bridal gown or dress Making Your Own Gown:Go with the original corset kit, replace the zipper or buttons on your dress for a professional perfect fit Suitable for weddings, dances and evening dresses SATISFACTION - If you have any questions, send us an email. We are looking forward to your suggestions about our improvement. Hope can bring you different comfortable and healthy experience. Cxapnstou