Wholesale also availableFeatures： 1.With rubber sleeves to fit most auto or truck applications. 2.Perfect for car and truck decoration. 3.With good quality，easy Installation. 4.These sleeves are tightly fitted in place with hidden grub screws. 5.Red LED lights through the skull’s eyes，When press on the button beside the eyes，the LED will light up ，it will slowly dim after more than 15 mintues . 6. Take down the black base When install， the base can protect gear head not broke when transportation . Fitement：Suitable for manual transmission car Interface diameter 1.5cm or less. Skull Size：7 x 4 x 2.2 cm / 2.8 x 1.6 x 0.87 inch Skull weight: 183g Package includes: 1 x Manual Gear Stick Shift Knob 1 x Screwdriver 3 x Plastic sleeve (8mm.10mm.12mm)