Kryptonite Kryptolok Series 2 Mini Bicycle U-Lock with Transit FlexFrame Bracket, 3.25 x 7-inch Now available in4 NEW COLORS: Pearly White, Merlot, Blue and Orange 13mm hardenedPERFORMANCE STEELSHACKLEresists cutting and leverage attacks Reinforced hardenedCROSS BAR DESIGNprovides increased protection HIGH SECURITY DISC-STYLE CYLINDER ANTI-RATTLE BUMPERSreduce noise during transport ROTATING DUSTCOVERprotects cylinder IncludesNEW TRANSIT FLEXFRAME-Utransportation system which allows for versatile carrying Protective vinyl coating 2 STAINLESS STEEL KEYS Product dimensions: 3.25 x 7 (8.2cm x 17.8cm)