Material:AluminumColor:BlackSize of Shift Knob:L*Dia/13*3.5cm/Size of Screw:L*Dia/2*1.7cmCompatible model:UniversalFeatures:Durable and practicalVery comfortable to gripVery convenient to installMade of high quality aluminumUniversal gear shift knob for Manual and automaticNOTE: our sign says Reverse gear is at the bottom right side， some cars may have the Reverse gear at the upper left side， if this was the case， please shift gear carefully to the upper left side when reverse to avoid damaging your car. How to use:Remove (twist， unscrew) your original factory gear knob from shifter. (For some cars， the knob is adhere to the shift lever and can not be removed， please check before purchase)Put the gear knob right above the shifter， choose the right size of adapter， and fasten it.After installation and ensure the gear knob is firmly attached to the shifter and the shifter is working properly. Package include:1 x Universal Aluminum Shift Knob 3 x Plastic Adapter (8mm， 10mm， 12mm)