Enhance shifting more smoothly and quickly into the gear box.Improves driving experience.This is unthreaded type shift knob.Easy to install,take off the original gear shift knob,then insert this knob into gear shift lever.Condition: 100% NewProduct Name: Car Gear Shift KnobSize: 54mm/2.12inch x 49mm/1.92inch (LxW)Mounting Hole Inner Diameter: 14mm/0.55inchManufacturer Part Number: 24108036Speed Number: 5 SpeedFitment: For Aveo Sonic T300 2012-2017(Please Compare The Part Number With Your Original One Before Purchasing!!)colour: black + silverMaterial: ABSPackage Contents:1 x Car Gear Shift KnobOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.