This half-sweep 3 3/8", 8,000 RPM;tachometer features a dual layer design, color changing rocket booster, a red pointer, a rich black face with bright white numerals and indices, and LED lighting. Finished with a stainless low step bezel and flat glass the Rocket Tach comes installed in a chrome cup that allows for a variety of mounting positions. It is easily calibrated with pushbutton control for four, six, or eight cylinder engines and includes a single snap-in wiring harness for ease of installation. Great for completing that retro look with the latest electronic technology, the Classic Instruments Rocket Tach is truly a blast from the past. Vintage styled tube packaging included!