You people are probably way ahead of me but I picked up one of these in a local Eckerd Drug Store to replace the old hard to read 10ml oral syringe that I used to measure small quantities of Rodinal. This has the coolest lttle system for getting the solution from the bottle into the syringe. Too nice a little $2.50US darkroom problem solver not to share. I must find a 20ml and 30ml that will worrk with it. Please excuse the flatbed scanner "photographs"