The Item Is A Master Lock U-Lock Bike Lock With Key, U-Lock For, Black. Product Details Product Description The Master Lock 8170D U-Lock Bike Lock with Key features a 6-1/8 in. (15 cm) wide hardened steel body for maximum strength and reliability. The 1/2 in. (13 mm) diameter double locking shackle is 8 in. (20 cm) long and made of hardened steel, offering extra resistance to prying, cutting, and sawing. The disc key cylinder prevents picking.. From the Manufacturer The object is to get away on your bike. Not for someone to get away with it. Security doesn't get any tougher than this. These locks are built with double locking shackles and high-security disc cylinders. Pliable rubber coated shackles protect your bike. Outdoor heavy duty bike U-lock is best used as a bicycle lock.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. U-shaped steel bike lock with key; Includes carrier bracket for easy transportation Bike lock features a hardened steel body and double locking shackle for superior cutting and prying resistance Bike lock body is 6-1/8 in. (16 cm) wide, with 8 in. (20 cm) shackle length, 4 in. (10 cm) width and 1/2 in. (13 mm) diameter Includes one u-lock bike lock, two keys Affordable U-Lock Protection Disc key for additional anti-pick protection Includes carrier bracket for storage convenience 6-1/8-inch by 8-inchby 4-inch Vinyl coating for weather and scratch resistance 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.