Cycling Attachment Accessory, Black, Kryptonite Transit, 16Mm Shackles. Product Details Mounts quickly and easy. Supports the transportation of the most common size u-locks. Compatible with 13mm 16mm round shaped shackles. 360 DEGREE ROTATION allows for the ability to micro-adjust. Heavy-duty SOFT STRAP SYSTEM contours to bike frame. Product dimensions: Fits bicycle frame tubing 25mm to 80mm whether round, oval, triangular or square shapes. Mounts quickly and easy.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. Supports the transportation of the most common size u-locks Compatible with 13mm 16mm round shaped shackles 360 DEGREE ROTATION allows for the ability to micro-adjust Heavy-duty SOFT STRAP SYSTEM contours to bike frame Product dimensions: Fits bicycle frame tubing 25mm to 80mm whether round, oval, triangular or square shapes Unique 360 degree rotation provides the ability to micro-adjust the lock angle to better fit and align with a bike frame's specific geometry Mounts quickly and easily and supports the transportation of the most common u-lock sizes. Fits bicycle frame tubing 25mm to 80mm Automotive grade hex bolt Knurled TugBlock increases holding power Strap that includes stiched-in rubber shim-easier for mounting Works with 13mm to 16mm lock shackle sizes Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.