Improper tire pressure robs you of performance and control. The JOES glow-in-the-dark tire pressure gauge is so accurate and easy to use that it will become the most-used tool in your collection. Its flexible hose and swivel chuck makes getting into tight places a snap and the 2-1/2-inch glow-in-the-dark faceplate makes the tire pressure (up to 30psi) easy to read, day or night. JOES includes a chromed angle chuck installed on the swivel fitting and we throw in a ball chuck so you always have the right version.