The Bell Catalyst 300 Bicycle Bike U-Lock in black is a high-security lock designed for cycling enthusiasts. Made with 12mm hardened steel, this U-lock offers a Eurograde 4 security rating, making it a durable and reliable option for protecting your bike. With a key lock mechanism, this portable U-lock is a practical choice for cyclists looking for added security while on the go. Manufactured in 2016 by the trusted brand Bell, this bike lock is a practical and reliable accessory for any cycling adventure.