Take a look at tubes Will not generally have volume markings. They can be sold according to their sizing and might have both clean openings or lips. Based on their size They may be divided into macro pipettes that have a capability of 1 ml or maybe more and micropipettes https://typesofpipetteaccordingto97395.onesmablog.com/top-latest-five-types-of-pipette-ppt-urban-news-69702777