Usage of a kli (instrument designated for squeezing fruits).
Bottom Line and Summary: Combing and Brushing One's Hair on Shabbos;
Putting Back a Glass Top into a Coffee Table, a Drawer Which Came Out of a Desk, Fixing an Earring Which Is Bent Out...
A Quick Review of Liquids of the Middle Level אסור מדרבנן (Asur M'drabanan/Rabbinically Not Allowed);