Universal Shift Knob Stopper Shifting Head Limiter Fixed Base Gear Head Buckle Aluminum Car Gear Knob Limiter With Wrench Function: Application: Universal.(Fit for 12mm Shift Knob Lever .) 100% quality assurance tested, more responsive, less expensive, easier to install. It can solve the problems that the dust cover is not fixed and the position is defective. Easy to change your favorite gear shifter. Securely retain your shift boot to the shift knob. Fix the dust cover and limit the position. Restore your vehicles transmission. Specifications: Material: Aluminum Color: Black/Silver/Red Size: as shown Applicable Model: Universal fit for most cars This shift knob stopper has the function of fixing the dust cover and can also limit the position. Note:Please allow 1-3mm measuring deviation due to manual measurement. Package includes: 1 x Shift Head Limiter 1 x Wrench 3 x Screw Installation Instructions: Squeeze the boot below the shift knob to disconnect the shift boot from the shift knob. Remove the knob by rotating it counter-clockwise. some models need open-ended wrench grip change lever nut. Remove the knob and the change lever nut from the shifter Use an angled, wide, plastic pry tool to pry between the trim and center console. Remove the plastic assembly that surrounds the shift lever. Disconnect any electrical connectors that are attached to the shifter surround, lift the shifter. Flip inside out the shift boot, cut the black zip tie, remove the shifter boot retainer. Install the new boot retainer from the exterior side of the shifter surround. Secure it in place with the provided o-ring and screws. Reassembly the boot shifter, trim and knob.Check for work.