Need to inflate those big dual tires on your truck, RV, or bus? This dual head air chuck makes it way easier. It's got two heads with inner threads, so you can connect it to both inner dual tires at once and inflate them evenly. The foot lock-on design means it stays put on the valve stem without you holding it. It's made from tough alloy steel with a comfy rubber grip, and it's a closed-flow/sealing type to prevent air leaks. It has a 1/4\ FNPT (Female National Pipe Taper) connection, so it should fit most air compressors, inflators, and pump accessories. Brand new from NSIoutlet, comes in silver. UPC: 601549135323. A must-have tool if you deal with big vehicles regularly.