Slime 1-20 PSI Pencil Low Pressure Gauge with Bonus Valve Cap. This chrome construction gauge features a 4-sided tongue that measures psi, kPa, and bar, ensuring accurate readings for low pressure tires. Its 6" length and built-in metal pocket clip make it easy to carry and use. It is tire sensor safe and great for low pressure tires found on bikes, ATVs, lawn mowers, and more. Includes (4) black plastic valve caps.