new and high quality Features: 1. HEAVY DUTY BRASS CONSTRUCTION of tire chucks with locking on make the tire air chucks durable and Reliable. 2. INTER SCREW TIRE CHUCK - including 2 packs Twist-on chuck(thread on) in 1 package. Twist-on chuck can tightly hold the tire valve of bicycles,motorcycles,cars, buses and trucks. 3.TIRE INFLATOR CHUCKS with thread can make it bite on the tire valve stem tightly when inflating 4.UNIVERSAL CONNECT TYPE ,1/4-Inch Female NPT, 3/4-Inch Hex, Fits Standard 1/4" NPT Fittings;locking on tire chuck 5. WIDELY USED AND WARRANTY ; Quick connect tire inflator chuck, Designed to use with Inflator and pressure gauge. LIFETIME Satisfaction Guarantee. Specification: 1. Item Type: Tire Air Chuck for bicycles,motorcycles,cars,buses, trucks and so on. 2. Special Features: Heavy-Duty,Large Bore,two Open Flow Through(twist-on chuck). Brass construction allows for strength and durability 3. Material: Environmental friendly Brass 4. Color: Golden 5. Size: 45x16mm 6. Open or Closed Design: Open (Flow Through) 7. Function & Feature: Twist-on tire valve for inflator and pressure gauge 8. Thread:1/4"NPT Female, 3/4-Inch Hex, Fits Standard 1/4" NPT Fittings,Wildly use range of professional pneumatic tools Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 Tire Air Chuck