Basic Single Speed Freewheel
This is a basic singlespeed freewheel. It has a tool surface for removal, which most less expensive freewheels lack (including most that come with inexpensive wheels or bikes).
This is the same freewheel that comes on most factory complete bikes that sell for $700-$1500.
We generally recommend purchasing a better quality freewheel like an ACS or White Ind. But 2021 shortages means that isn't always possible. These do work fine, though. Comes off with a standard 4 prong tool.