勉強用の動画です。参考にしてください。搾乳機【pigeon搾乳機#Breast Pump Tutorial】手動搾乳機の使い方講座(電動ではないです)【tits/milking/착유기/공부를 위해】

This video is for study purposes. It explains how to use a manual breast pump (Pigeon breast pump). The video covers the usage of the pump, noting that it is not electric. Viewers are encouraged to leave comments if anything is unclear. The video may show nipples, but this is unavoidable for explaining the pump usage.