Feature: 1. Works on any automobile with 8, 6 or 4 cylinder engines. 2. Adjustable set value, can adjust the RPM from 1K to 11K. 3. Eye-catching and fashionable blue LED light. 4. Comes with bolted mounting stand, easy to install. 5. Can aid the driver in making accurate shifts for best performance. Specification: Features: Works on any automobile with 8, 6 or 4 cylinder engines. Adjustable set value, can adjust the RPM from 1K to 11K. Eye-catching and fashionable red LED light. Comes with bolted mounting stand, easy to install. Can aid the driver in making accurate shifts for best performance. Specifications: Light Color: Red / Blue (Optional) Shape Color: Black Material: Aluminum Voltage: 12V RPM Range: 1K~11K Light Diameter: 3.5cm / 1.38in Item Size: 13.5 * 3.5 * 3.5cm / 5.31 * 1.38 * 1.38in(L * W * H) Item Weight: 156g / 5.5oz Package Size: Approx. 16 * 10 * 5cm / 6.3 * 3.94 * 1.97in(L * W * H) Package Weight: 181g / 6.38oz Package List: 1 * RPM Shift Light 1 * Black Hose 2 * Screws 1 * User Manual(English) Package List: 1 * RPM Shift Light 1 * Black Hose 2 * Screws 1 * User Manual(English)