Blox Racing BXAC-00286-SI Silver FR-S Style Shift Knob The FR-S style shift knob is designed to accept any vehicle with a 12 x 1.25 reverse lock-out lever Each shift knob is weighted to 189 grams Hand-polished then undergoes Mil-spec Type II anodizing process Subaru BRZ and other vehicles using 12 x 1.25 reverse lock-out lever transmissions