Slime s Pencil Tire Gauges provide a simple way to ensure your tires stay properly inflated. This kit includes 1 dual-head pencil gauge and 2 bonus valve extenders. Slime is a well-known brand for flat tire prevention and repair. Maintaining proper tire pressure reduces fuel consumption and maximizes tire tread life making your tires last longer and perform better. Our high pressure dual head pencil gauge is extremely easy to use. Just pop the head onto a valve and take a reading. Plus we ve included 2 valve extenders so you can always measure your air pressure even in those hard to reach places. Silver in Color 8.5 Long New and for multiple makes.