The listing, Brake bleeders has ended.
Brake breeders that I didn't end up needing to bleed my brake lines. These were about $10 at the auto store!
They say thread size 3/8"-24
Overall length is 1.19"
Operation:
1. Open Bleeder 1/4-1/2 turn.
2. Pump brakes until air is released.
3. No need to close screw between pumps.
4. Close valve.
These pretty much make your brake lines much easier to bleed out, without the hassle!