Compatible now to old stye shift knob. Please choose OLD if your knob is the old design like below. (Mazda 3 14-18, Mazda 2, Mazda 6 14-22, CX3, CX5 12-22, CX8, CX9)
If FLAT TOP, just direct replacement only. No need to replace the white stick.
If ROUND TOP, you need to pull out the white plastic and replace with black stick included in the package.