Kovix Steel Thunder Alarmed U-Lock 

Hardened Steel Shackle: 14mm thick for exceptional strength.
Powerful Security Alarm: Built-in 120dB anti-theft alarm for real-time alerts.
User-Friendly Operation: Easy ARM/DISARM feature for quick access.
Cutting & Sawing Resistant: Engineered to withstand forcible attacks.
High Security Design: Pick and drill-resistant disc-style cylinder.
Rust-Proof Body: 100% rust-proof lock body for long-lasting durability.
Protective Coating: Vinyl covering to prevent scratches on your vehicle.
Weather-Proof Electronic Module: Reliable performance under various environmental conditions.
Package Content: Includes lock, mounting bracket, and two keys for your convenience.