Review on M5 x 0.8 Micro Bleeder - Motion Pro 11-0095 Silver: Effortless Air Bleeding Solution by Skyy Strickland

Read reviews of these leaking oils, not mine. They are quite tricky to install as you need a wider screwdriver than a regular screwdriver as the slots of the head fit backwards. Beware of other two-piece models. If you have to pull it off with pliers, the lower half breaks off at the threads. That was my main reason for buying this type. They are also very small and fit nicely under the steering wheel. If they start losing oil I will update this post.