Keep your bike safe and secure with the Ndakter Bike Chain Lock. This modern bike lock is made of alloy steel and features a heavy-duty design with anti-theft and resettable features. The lock is controlled by a hand touch and comes with a 4-digit combination and key for added convenience. The round shape and black color of the lock make it a sleek and stylish accessory for your bicycle. It measures 3.2 feet long and 6 mm thick, weighing only 1.5 pounds. The Ndakter Bike Chain Lock is perfect for anyone looking for a reliable and secure way to park their bike.