Product details Features: 1. Tire deflation valve: Quick deflation, automatic exhaust range is 6PSI-30PSI, there are two styles to choose from to meet different needs. 2. Good sealing: air leakage, avoid dirt and unnecessary objects from damaging the tire core, and effectively prolong the service life of the tire. 3. Durable material: Made of sturdy and durable copper material, high hardness, strong toughness, not easy to wear and deform. 4. Strong compatibility: This tire deflation valve is suitable for a variety of vehicles, and it can be used with any standard tire stem. 5. Easy to install: No additional tools are required to install, deflate to the same tire pressure every time you install, thus speeding up tire deflation. Specification: Product Name: Tire Pressure Relief Valve Color: Gold Material: Copper Size: About (outer diameter * total length) 1: 17*41 mm/0.67*1.61 inch(30.9g) 2: 16*30 mm/0.63*1.18 inch(27g) The package includes: 4Pcs x Tire Pressure Relief Valve Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.