Feature: 1. EFFORTLESS TIRE DEFLATION: This kit allows you to deflate your tires quickly without the need to monitor tire pressure constantly. The deflator valve automatically stops at your preset PSI value, making the process efficient. 2. INDIVIDUALLY CALIBRATED ACCURACY: Each tire deflator valve is calibrated separately, with a tolerance of + - 2 PSI considered acceptable. While designed for fast off road tire deflation, it's important to note that this kit is not intended for precise vehicle adjustments. 3. SIMPLE TO OPERATE: The tire deflator valve features a clear scale display that adjusts to your desired air pressure. When the PSI value is reached, it will stop deflation, simply twist the deflator's housing (where the mark is located) to set your PSI. The adjustable range spans from 30 PSI to 10 PSI. 4. RUGGED CONSTRUCTION: Made from high strength brass materials, these tire deflator valve is built to last. Their robust design ensures that you can rely on them for countless adventures, delivering excellent performance and longevity when you need it most. 5. COMPLETE KIT FOR OFF ROAD ENTHUSIASTS: This set comes with 4 deflator valves and a handy zippered bag, making it an excellent companion for your off road adventures. Ideal for trucks, powersports vehicles, SUVs, RVs, or UTVs. Specification: Item Type: Tire Deflator Valve Material: ABS + Copper Adjustable Range: 10-30 PSI Fitment: Suitable for off road 4x4. Package List: 4 x Tire Deflation Valve 4 x Valve Cap 1 x User Manual 1 x Storage Bag Note: Please check the size before purchasing.