【Dual Head Air Chucks】--- 6.6 inches, straight heads specifically designed for inner/single wheel or hard to reach valves, 30° reverse chucks for outer wheels. Suitable for trucks, semi truck, motorcycles, motor homes, air pump and compressor accessories, etc. 【Solid and Durable】--- Tire chuck constructed with high-quality solid metal alloy, offers more hardness and durability, corrosion resistance and wear resistance, will serve you faithfully for years. The frosted feel of the surface can prevent slip during use. 【Closed Flow/Sealing Type】--- The closed flow air chuck enables airflow when connected to the valve cores and halts airflow when not linked to the valve cores. This design prevents air leakage, which is a significant advantage over open chucks. 【2-Way Connection】--- Featured with 1/4" female national pipe thread, extended metal alloy air rod, 2-way Easy Connection dual head closed flow air chuck, both ends securely fits onto the valve core threads quickly tire air fill with no air leakage. This length is more suitable for CARRYING and STORING. 【Easy to Use】--- Both ends securely fits onto the valve core threads. Push the air chuck on the valve stem firmly and lean it slightly to lock it onto the valve stem. When finished the inflating, align it back straight to valve stem and pull it off. The maximum air pressure is 300 psi. WNCGC HEAVY DUTY AIR CHUCK USED FOR VEHICLES WITH SCHRADER VALVE Specification: Dual Head Air Chuck Max Pressure: 300PSI Connector Size: 1/4'' female national pipe thread air inlet Type: Close flow air chuck Fit for: Tires with schrader valve Application: Most bikes, motorcycles, cars, trucks, air compressor attachments. Feature: Air chucks featured a female 1/4'' thread for easily connected to air lines, also included a standard 1/4'' male quick plug for connecting to air lines' female quick couple effortlessly.