Amazon.com: OKG Heavy Duty Chain Lock, 3.9 ft x 1/2 in (12mm) Thick Case Hardened Steel Noose Security Chain with 18mm Anti Theft U Lock for Motorcycles, Mopeds, Ebikes, Trailers, Generators, etc. :
What is a Lock Necklace and Why Should You Add One to Your Wardrobe? - Statement Collective
Amazon.com : Bike Chain Lock, Cannot Be Cut with Bolt Cutters Or Hand Tools, Premium Case-Hardened Security Chain for Motorcycles, Bike, Generator, Gates,Outdoor Furniture : Sports & Outdoors