BEAST 8017LPT CHAIN LOCK WITH X2 STEEL ROD LOCK 4.5FTDimensions: length: 4. 5'; 12mm gauge links; 16mm T rod diameter; 7. 7 lbs. Chain made of titanium reinforced, hardened steel hexagonal links that resist cutting or prying Chain cover protects paint and finishes, with an embroidered logo that wont flake or wear off X2P Dual Lock mechanism that secure the shackle on four or two sides, respectively. Locks use Z cylinder tumbler mechanism that is bump proof and resists picking, pulling, or drilling Co