I use pipettes to draw Part A and one for Part B of PMK and measure into another vile that is marked in 1 ml increments. I installed the bulbs on both and one is little and one is big. I also have some syringes but have not used them for a while. I put tubing on the ends so I could stick that into the chemistry.
2.5ml. I bought one of those colour kits. Basically to prove to myself I can/can't do it. Now my choices are make up the whole thing. In which case it'll go bad far quicker then I could ever use it. Or make up a little at a time.