55mm Proper shift knob. I bought this cuz I wanted to spice up my interior a little but after buying a few other things I think my old greddy one fits better. Shift knob is brand new in box and has different inserts so itll fit pretty much any car. Anyways I bought it from Touge Factory and here is the pictures they used. Since its BNIB no point in posting pictures of it unless I really must