Keeping your bike secure just got a whole lot easier with this INTEKIN U lock setup. The main U lock features 16mm thick hardened steel with PVC coating - that's 0.63 inches of serious theft protection that resists cutting, prying, and sawing attempts. The zinc alloy disc lock core adds another layer of security against picking and drilling, plus there's a dust cover to keep the keyhole clean. But here's the really smart part - you also get a 3-foot long security cable with 0.47-inch diameter that lets you secure your wheels and seat to the main U lock. The U lock itself measures 8.3 x 5.7 inches, giving you plenty of room to lock up to bike racks, poles, and other fixed objects. The included mounting bracket makes carrying the lock on your bike frame super convenient - no more awkwardly stuffing it in your backpack. The PVC coating protects your bike's finish from scratches, and the whole system is weather-resistant for outdoor use. Whether you're commuting in the city, running errands, or just want peace of mind when you park your bike, this U lock and cable combo provides comprehensive security without being ridiculously heavy or bulky. It's that perfect balance of serious protection and practical usability that every cyclist needs.