Etronic  Security Bike Lock M6 Self Coiling Resettable Combination Lock Bike Cable Lock, 6-Feet x 3/8-Inch SPECIFICATIONS: 6' (1.85m) long x 3/8" (10mm) diameter. VERSATILE USE: Ideal for bicycle lock, combination lock, cable lock, skateboards, sports equipment, gates & fences, grills & lawnmowers, tools, tool boxes & ladders. DESIGN: Flexible steel cables for strong cut resistance. Preset combination. Protective vinyl coating prevents scratching. KEYLESS: Combination locking mechanisms for keyless convenience. INCLUDE: Two lock, two bike lock mounting bracket.