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
