These speed bleeders replace your OEM brake bleeder valve. With these installed brake bleeding is finally a one person operation. Simply crack open the bleeder and press on the brake pedal. When the pedal is release, a check valve inside the bleeder prevents air from entering the brake lines. Brake bleeding couldn't get any easier! For disc brakes only (front on a stock Samurai - also rear if you have done a disc brake conversion) Price is per Pair.