Onto the poor instruction so the adapters you get have to be cut open at the top i used a wire cutter tool and then slid i should say struggled to get it on over the gearshift lever while using the gearshift knob to push down onto the lever with the rubber sleeve on and then the screws you get with it have to be tightened onto the rubber sleeve through the predrilled holes in the knob while the knob is over it

Other than the lack of instructions and poor illustration on this listing i really like this gear shift knob its a solid aluminum construction and i wont be replacing it anytime soon unlike the stock gearshift knob on my 2003 honda im certain the vertical orientation while having less parts wont break anytime soon