50" inch - 4.1flt long, each chain 2L x 1W x 10mm thickness. Steel Chain Square six-sided chain links.
And Master Lock Heavy-Duty Hardened Steel.
Kryptonite New York FAHGETTABOUDIT 1410 Chain Anti-Theft Bicycle Chain Lock with Keys, 10/10 Security Rating for E-Bike, Motorcycle, Scooter