The knob itself is good but the plastic bushings are not the best. The 10mm one didn't screw on the shifter, it just slid on half way and then screwed very lightley, but when i screwed on the knob the outer thread stripped and the knob was very loose. I took the smallest one drilled a bigger hole in it and tried to thread it but it just broke apart. Maybe I was just unlucky. Overall I'm satisfied with the knob and I'm going to fabricate a new thread adapter. I'd give the product 3.5 stars just because of the inconvenience those adapters caused me
Fast shipping,didn't expect to come this fast