Reasons for selection:1. This chain lock features an iron alloy lock body and a brass lock cylinder. The lock head is smooth and burr-free, protected by an outer rubber sheath that is waterproof, rustproof, wear-resistant, and cut-resistant, ensuring durability, practicality, and aesthetics.2. This rubber-coated chain lock employs a complex atomic lock cylinder design, making the lock body robust and secure. It is difficult to open with duplicate keys, effectively preventing theft and prying. Each lock comes with two keys for convenient management and use by different personnel. Each lock comes with two keys for convenient management and use by different personnel.Measurement:Color: Blue; Material: Alloy Steel/Brass; Total Length: 800 mm / 31.5"; Chain Thickness: 4 mm / 0.
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