2*Dual Head Air Chuck 1/4" FNPT Straight Foot Lock On Truck RV Tire Inflate Chuc

2 x 1/4" FNPT thread. and 30° reverse chuck for outer wheels. Ideal for inflating truck, RV, and bus inner duals with its 9" overall length. inflating Push the air chuck on the valve stem firmly and lean it slightly to lock it onto the valve stem.