Used baby car seats (Recaro). Used for two kids but they are quite new and still good in condition. We also have a four-wheel kid bicycle that is hardly use - we lived in an apartment so the chance to go out was rare.
Car seats - HKD 500 and 50
Bicycle - HKD 650
All-to-go at HKD 1,050
Please whatsapp me @ 56333889 if you're interested.