Features: brand new and high quality Dual for Head Air Chuck matches with standard NPT. Tire chuck has the function of checking pressure and inflation, NPT threads make this gauge fit for most tire inflators. The tire chuck adopts a push-in chuck design; No need to thread the chuck onto val ve stems, just push the chuck onto the val ve for a nice seal. Constructed with high quality solid metal alloy and brass, offers more hardness and durability, corrosion resistance and wear resistance, which is a perfect choice no matter for business or household use, will serve you faithfully for years. Small size allows for easy carrying and storage, can meet your different requirements. Specifications: Material: Metal Size: Length: 26.5cm/ 1.04 in Diameter: 9mm/ 0.35 in Joint: 5x8mm/ 0.2x 0.31 in Package Includes: 1x Air Chuck note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.