You can use a Poppy car for a maximum of 2 days (48h) in Antwerp and a maximum of 1 day (24h) in Brussels and not longer. After the trip, you of course have to get the car back to the homeowner of Antwerp or Brussels.
A Poppy scooter can be in your possession for a maximum of 24 hours. ⏰
After the maximum period of time, you can of course directly book another Poppy vehicle.