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 chuck (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 can 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-inch NPT fittings; locking tire chuck design. 5. Widely used and designed for use with inflator and pressure gauge. Lifetime satisfaction guarantee. Specifications: 1. Item type: Tire air chuck for bicycles, motorcycles, cars, buses, trucks, and more. 2. Special features: Heavy-duty, large bore, two open flow through (twist-on chuck). Brass construction provides strength and durability. 3. Material: Environmentally friendly brass 4. Color: Gold 5. Size: 45 x 16 mm 6. Open or closed design: Open (flow through) 7. Function and feature: Twist-on tire valve for inflator and pressure gauge 8. Thread: 1/4-inch NPT female, 3/4-inch hex, fits standard 1/4-inch NPT fittings. Wide compatibility with professional pneumatic tools Note: 1. Transition: 1 cm = 10 mm = 0.39 inch 2. Please allow 0–1 cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. 3. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you! Package includes: 1 × Tire air chuck