Titanker Bike Chain Locks (6Mm, 8Mm, 10Mm Thick Chain) Are Security, And Grill. Product Details Secure Portable: The key can only be pulled out when locked, which prevents the key from being lost. Titanker bike lock comes with 2 keys. You can take one of the keys to use in daily life, and you can leave another key at home in case you accidentally lose one Heavy Duty High Quality: With 8mm thicker security heavy-duty chain links, our bike lock is made of heavy-duty steel known for its cut-resistance. Lubricate the bike chain lock hole and keyhole regularly, this will prolong the lock's service time Protective Cloth Sleeve Dust Cover: Chain is enclosed in protective cloth sleeve, which effectively protects the bike lock chain from rusting and scratching Safety Tips: Never leave your bike locked outside for long periods of time. Especially in high crime areas. No bicycle lock is 100% secure Portable Safe Size: The overall length of the bicycle chain lock is about 3.3 feet. The links are about 1.97 inches long and about 0.32 inches inch thick. Lock Weight: 2.5 pounds 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.