Brand Features: 1. Heavy duty brass construction of tire chucks with locking mechanism makes the tire air chucks durable and reliable. 2. Inter screw tire chuck – includes 2 packs of twist-on chucks (thread on) in 1 package. Twist-on chuck can tightly hold the tire valve for bicycles, motorcycles, cars, buses, and trucks. 3. Tire inflator chucks with thread design securely attach to the tire valve stem during inflation. 4. Universal connect type: 1/4-Inch Female NPT, 3/4-Inch Hex, fits standard 1/4" NPT fittings; includes locking tire chuck. 5. Widely used and designed for use with inflators and pressure gauges. Lifetime satisfaction guarantee. Specification: 1. Item Type: Tire Air Chuck for bicycles, motorcycles, cars, buses, trucks, and more. 2. Special Features: Heavy-duty, large bore, dual open flow through (twist-on chuck). Brass construction ensures strength and durability. 3. Material: Environmentally friendly brass 4. Color: Gold 5. Size: 45x16mm 6. Open or Closed Design: Open (Flow Through) 7. Function & Feature: Twist-on tire valve chuck for inflator and pressure gauge 8. Thread: 1/4" NPT Female, 3/4-Inch Hex, fits standard 1/4" NPT fittings. Compatible with a wide range of professional pneumatic tools. Note: 1. Transition: 1cm = 10mm = 0.39inch 2. Please allow 0–1cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. 3. Due to differences between monitor displays, the picture may not reflect the actual color of the item. Thank you! Package includes (without retail packaging): 1 × Tire Air Chuck