This Serfas CL-15 Combo Bike Lock is the perfect accessory for any cyclist seeking extra security. The lock is made of durable steel and features a weather-resistant design, making it suitable for outdoor use. The 6 ft cable length and 15 mm cable thickness provide ample protection against theft, while the Eurograde 4 security rating ensures peace of mind. The lock mechanism is a combination, providing a convenient and secure way to lock your bike. The Serfas CL-15 also comes with a bracket, making it easy to mount and remove the lock. The black color adds a sleek touch to your bike accessories.