Bleeding the brakes on your vehicle typically requires a friend to help pump the brakes while you bleed the caliper or wheel cylinder. With Earl’s Solo-Bleed brake bleeders the process of bleeding your brakes becomes a one-man operation. Earl's Solo-Bleed brake bleeders are a direct replacement for the original equipment bleeder screws on your brakes. Solo-Bleed bleeder screws have an internal plunger that opens and shuts automatically allowing your brakes to be bled automatically while you pump your brakes. The brake bleeding process can now be safely done by one person without making a mess and with no chance of getting air into the system. Just remember to tighten up the Solo-Bleed when you're done. So the next time you need to bleed your brakes, remember Earls Solo-Bleed brake bleeders. They’ll make your life just a little bit easier when you are by yourself.