Packaged in tubes of 100 strips. Identifies bad brake fluid in 60 seconds. Simple and easy to use. Not a moisture or petroleum test. Patented FASCAR copper testing technology The only MAP approved copper test. Portable and compact, with a 3 year accuracy guarantee.The revolutionary brake fluid testing system that guarantees fast, accurate results. It's recommended by manufacturers like Bendix Brakes and Raybestos. No other brake fluid test_x001e_ finds bad brake fluid as often as BrakeStrip. So use BrakeStrip and drive with confidence.