Speedbleeders
Nothing too fancy, just very useful. You replace the nipple on your brake caliper with one of these, then to bleed you just open the valve 1/4 turn and pump the brakes. No need to keep turning the nipple back to closed between every pump of the brakes. The ball valve will allow the brake fluid to push out, but close so air won't be sucked back in. Makes bleeding your brakes truly a 1 person job.
