The Master Lock No. 8234EURDPRO Chain with Mini U Lock is 90cm long and features 10mm diameter hardened steel links, offering resistance to cutting and sawing. The nylon sleeve provides additional protection for equipment. The mini U lock features a hardened steel body for maximum strength and reliability. The 14mm diameter shackle is made of hardened steel for maximum resistance to cutting and sawing. The high security disc cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. The lock protection offers a weather proof. The bike lock is certified: Sold Secure Silver (UK) and Police Approved (UK). The Limited Lifetime Warranty provides peace of mind from a brand you can trust. Master Lock hardened steel chain and padlocks provide robust security for bicycles and other valuable equipment. Designed to resist cutting, sawing and prying, they feature toughened steel links and a protective nylon sleeve to prevent scratches. The high-security locks include hardened steel shackles, anti-pick cylinders and dual locking mechanisms for maximum protection. Suitable for indoor and outdoor use, these locks are weatherproof and security-certified. Backed by a limited lifetime warranty, they deliver reliable protection and peace of mind. Features and Benefits: Hardened steel chain resists cutting and sawing, Protective nylon sleeve prevents scratches and damage, High-security lock with hardened steel shackle for maximum strength, Anti-pick cylinder for enhanced protection against theft, Dual locking mechanism resists prying and hammering, Weatherproof design for indoor and outdoor use, Certified security rating for added confidence, Backed by a limited lifetime warranty.