Blox FR-S Style Shift Knob 12x1.25 Reverse Lock (Red)BLOX Racing is pleased to add another shift knob to its current offerings. The BLOX Racing FR S style shift knob is CNC machined from high quality, billet AL6061 T6. After the shifts knob have been machined to exact specifications, each one is then hand polished. Each shift knob is weighted to 189 grams and undergoes Mil spec Type II anodizing process. The FR S style shift knob is designed to accept any vehicle with a 12x1. 25 reverse lock out lever.