ITEM NAME:Lock Brake Disc Bicycle Bike Wheel Pressure Locks Bike Safety Mini Anti-Theft Descriptio n Description: Scope of application: electric vehicles with disc brakes, motorcycles, bicycles Cylinder specifications: internal pressure lock cylinder Lock pin size: 5.5mm (less than 5.5mm can not be used) Specifications: Material: Alloy Color: Silver Size: 3*4.5*3cm Package Included: Alloy Steel Mini Round Disc Brake Lock * 1 Note: Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! Lock Brake Disc Bicycle Wheel Pressur Locks Bike Security Safety Mini Anti-Theft.Cylinder specifications: internal pressure lock cylinder. Alloy Steel Mini Round Disc Brake Lock 1. We'd like to settle any problem in a friendly manner. Lock pin size: 5.5mm (less than 5.5mm can not be used).