Kryptonite Evolution 1090 10Mm E-Bike Bike Lock. 10mm six-sided chain links made from 3T MANGANESE STEEL. Patent-pending END LINK DESIGN secures chain to hardened deadbolt eliminating critical vulnerability. HIGH SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Patented*, reinforced OVAL CROSSBAR LOCK HEAD. SLIDING DUSTCOVER protects and extends cylinder life. 3 STAINLESS STEEL KEYS ? one LED lighted key with replaceable battery and 2 new, ergonomic ?I? keys. Durable WEATHER-RESISTANT nylon sleeve prevents scratches. Key Safe Program. Product dimensions: 35.5? (90cm) chain length.Product weight: 6.10 lbs (2.77 kgs). Product Features New patent-pending pin-less link design secures chain to hardened deadbolt, offers no "weak" link in the chain due to the extensive holding power of the link itself against attacks 10mm six-sided chain links made of 3t manganese steel High security disc-style cylinder is pick and drill resistant Resists most common hand tools Weather-resistant nylon sleeve prevents scratches to painted finishes.Compact coiling for easy carrying.Includes 3 stainless steel keys, 2 standard keys and one with a high-intensity LED bulb for convenient, easy unlocking in the dark 10mm six-sided chain links made from 3t manganese steel Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability High security disc-style cylinder is pick and drill resistant Patented*, reinforced oval crossbar lock head Sliding dustcover protects and extends cylinder life 3 stainless steel keys ? one LED lighted key with replaceable battery and 2 new, ergonomic ?I? keys Durable weather-resistant nylon sleeve prevents scratches Key Safe Program Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!