Wring-out mop: Durable and inexpensive, but doesn't wring out water completely;
Flat mop: Suitable for dry mopping and cleaning hard-to-reach areas, good at vacuuming;
Spindle mop: Saves effort and makes cleaning the bucket convenient, but takes up space;
Sponge mop (PU foam mop): Good at wringing out water and highly absorbent.
