Specification of Abloy Lock Cylinder :  1. Housing and Spindle made by zinc alloy material 2. Around 2,000 key codes combinations  3. Applications : Bicycle, Motorcycle, Car. Welcome other applications ! 4. Competitive advantages: Excellent quality and processing technique with the lowest deficiency 5. Size limitation : No smaller than 18mm(Length) X W16mm(Round Width).  6. Excellent R&D team to satisfy your demand and solve your security problems 7. Can not be duplicated and open easily.