[CREATIVE]: This kit allows you to air down tires quickly without needing to monitor tire pressure continuously. The deflator valve automatically stops at your pre-set PSI value. [ACCURACY]: Each tire deflator is individually calibrated, with +/- 2 PSI considered acceptable. The deflator kit is designed for quick off-road air-down setup, not for precise vehicle tuning. [ADJUSTABLE]: No tools required. The tire deflator features a clear scale display. Adjust to the desired air pressure, and it will stop releasing air once the set PSI is reached by twisting the deflator shell (where the logo is located). Adjustable range from 30 PSI to 10 PSI. [PACKAGING]: This kit includes 4 deflator valves. It is an ideal tire deflation tool for off-road use, compatible with trucks, powersports vehicles, SUVs, RVs, and UTVs. Color: Black Material: Brass Package Contents: 4 * Automatic Tire Deflator Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.