materials: ABS +0.8mm high-strength steel wire, this kind of lock is firm, drip safe, and the steel wire rope is not easy to break when stretched. They easily dragged it to the appropriate LNG for easy use. . retractable wire rope: Telescopic steel wire rope is made of mitered material with high elasticity. The LNG of steel wire rope affects 65cm. They use barrier-free latches, access cards, etc. . Multi-function: You can not only lock it, but also store other gadgets such as pipes, flashlights, multi-function keys, ID cards, access cards and certificates. It is more practical and flexible than chains or connecting tools. . Convenient and lightweight: small in size, light in weight, capable of storing multiple locks, and built-in carbine, which can be hung on Krper. They wont squeeze the destructive weight, are easy to carry, and wont bear the burden.