Feature: 2 brand new locking air chucks: These solid brass locking air chucks are high quality hose attachments for easily inflating tires. Precision machined: These feature a solid brass construction and they are precision machined for leak proof operation. Each of these air chucks feature a 45 degree angled head with a lever that locks the chuck to your valve stem and allows you to fill air easily. These chucks have a 1/4" NPT air inlet. Description: Material: Brass + Alloy Type: Pneumatic Air Tool Accessory Kit Size: 1/4" NPT Female Packing list: Tire Inflator Locking Air Chuck *2 .