Style Name:New-U<br>18mm hardened MAX-PERFORMANCE STEEL SHACKLE. Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist and cut attacks. Patented STEEL SLEEVE over cross bar for double security. HIGHEST SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Sliding dustcover to PROTECT FROM DIRT AND DEBRIS. 3 STAINLESS STEEL KEYS - including new design and one LED REPLACEABLE KEY FOB. Key Safe Program. Protective vinyl coating. Product dimensions: 3.25Ó x 6Ó (8.3cm x 15.3cm).