Practical and durable: the chuck is made of quality brass, strong and durable to use, not easy to deform or damage, and can serve you for a long time, the maximum pressure is up to 250 PSI, which is applied for tire inflators and pressure gaugesOpen flow design: the open flow straight tire chuck with is designed for slowly inflating, with a valve inside, and the open flow design allows to flow even when not engaged to a valve stemConnector type: the brass chuck is suitable for 1/4inch female NPT, 3/4inch hexagon, installation, suitable for most tire inflators, wheel pressure gauges, compressors, etc. the tyre chuck head is suitable for the inflation nozzles of most vehiclesLocking clamp: when using an chuck to inflate the tire or measure the pressure, you use the locking to fix the chuck to the valve stem to a seal, easy to fix, simple to operate, and convenient to use, widely applicable in your lifeSufficient quantity: there are 6 pieces chucks in , and sufficient quantity can meet most of your needs, suitable for trucks, buses, , bicycles and motorcycles, bring more convenience in your lifeColour: silver+copper colorMaterial: brassPackage Contents:6 x Brass ChuckNote:Due to different production batches, product colors and pictures may be differentOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.