Specification: Model: 538404 Cylinder Diamater: 10mm Cylinder Length: 16mm (max) 7.5mm (min) Distance Between Hole Centers: 15.5mm Weight: 120g Note:1. We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need.2. Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm)3. There are no instructions included in this kit. Professional Installation Is Highly Recommended. Package Included:1 X Battery Chager Lock 2 X Keys