Lock'n'Deal is an add-on feature of Carousell,

for users to transact using lockers

at convenient MRT stations. 

All you've to do is to select your preferred MRT station(s), and Lock'n'Deal will generate the most convenient location between you and your seller.

After making payment through the app, your seller will have 3 days to drop the item(s) in the designated locker.

You'll be notified once your seller has placed the item(s), so feel free to unlock the locker and collect your goods within the next 3 days!