18mm hardened max-performance steel shackle resists bolt cutters and leverage attacksOversized, patented hardened steel sleeve over crossbar for double securityDouble deadbolt locking for extensive holding powerHigh security disc style cylinderCenter keyway defends against leverage attacksProtective vinyl cover prevents frame scratchingSliding dustcover protects and extends cylinder life3 keys included, 2 regular and 1 LED lighted key18mm4x10.25`/10.7x26cmLSBlk/Yel10 of 10UPC/EAN/GTIN: 720018994589