A tire gauge is not very useful if you can’t find it. This Accutire MS-4652HP Key Chain Digital Tire Gauge is also a key chain. Now every time you head for the high speed grocery getter you will be reminded to check your tire pressure. Proper inflation saves gas, maximizes handling increases tread life and improves safety. This compact design works great on most tires from your wheelbarrow to your 3/4 ton truck. Available in 4 fun colors and black.