1. Material: metal + ABS
2. Cylinder diameter: 10mm
3. Cylinder length: 16mm (Max) 7.5mm (Min)
4. Hole center spacing: 15.5mm
5. Battery mini lock with 2 keys for motorcycles and electric Bicycles
6. Durable, practical, long service life
7. Easy to install, simple to use
8. For Silverfish/Qianhe electric bicycles
9. Weight: 120g (approx.)