Features:- 18mm Hardened Max-Performance Steel Shackle Resists Bolt Cutters And Leverage Attacks- Oversized, Patented*Hardened Steel Sleeve Over Crossbar For Double Security- Double Deadbolt Locking For Extensive Holding Power- High Security Disc-Style Cylinder- Center Keyway Defends Against Leverage Attacks- Protective Vinyl Coating- Sliding Dustcover Protects And Extends Cylinder Life- 3 Stainless Steel Keys – One Lighted With High Intensity Led Bulb & Replaceable BatterySpecifications:- Product Dimensions: 3.9 10.3 (10.3cm X 26.1cm)- Product Weight: 6.1 Lbs (2.76 Kgs)