@GB Features: The dual chuck air tire-head has a protective chrome-plated metal body and the head is made of-tough impact-resistant abs material. The dual chuck air tire-head is a great tool for garages at home-and the repair shop to keep tires primed-and ready! Both lock on air chuck and dual head tire chuck featured a 1/4inch-npt female thread for easily connect to air fittings-or tire inflator gauges for tire inflation. Multifunctional tire chuck kit: This tire chuck kit is designed to inflate dually truck,car, suv, motorcycles, bicycles (with-valve) etc. Inflate tires directly with a push-in chuck design; no need to thread the chuck onto valves stems. Just push the chuck onto the-valve for a strong seal. Specifications: Material:Zinc Alloy Length:Approx.23cm/9.05inch Length:Approx.15.5cm/6.1inch Package Includes: 1x Dual-Air Tyre Chuck Head Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.