Review on Upgrade Your Car'S Interior With Lunsom'S Leather Gear Shift Knob For Most Manual Vehicles - Type R Alloy, Most Compatible, And Sleek Black Design by Luis Blaschko

No, it's not genuine leather; it's polyurethane. No, it doesn't feel like leather; it's too hard. That said, it's only 20 bucks. The texture on my Ford ZX2's knob was worn so smooth that it felt sticky to my hand. The inserts are a hard rubber. They're a slip fit in the knob and an interference fit on the Ford's 10 mm shaft. (The 10 mm insert's ID measured 9.5 mm.) I placed the insert in the knob first. It took some effort to get the knob on the shaft; rotating it while pushing down helped.As delivered, the shaft goes into the knob about 1-3/4". I wanted the knob as low as I could get it. The bottom of the hole is just polyurethane, so I drilled it out to a depth of 2-1/2" with a 1/2" drill bit. I also cut the closed end of the insert off with an X-acto knife. Pushing it down really hard, I got it about 3/8" lower than the stock knob. Pleased about that. And it's not sticky.