The QR code system allows you to rent out lockers both in advance and during the event. Visitors receive locker information via text message and email and no longer have to stand in a queue. Locker sales are completely cashless, minimal staffing is required, and as an organization you can closely monitor statistics on locker rentals. 

With PIN code lockers, you can work with PIN code cards. It is possible to rent out lockers in advance of the event, which ensures a fast flow of visitors. Compared to key lockers, with PIN code lockers you need less effort from the staff at the exit because there is no deposit to return to visitors. 

Key lockers are the cheapest option. A deposit is required when returning a key; afterwards, the key can be rented out again, allowing you to easily switch between multiple users. With key lockers, you choose the most labor-intensive option.