Those are similar to bread trays here in the US. My DH and I went out to dinner Thursday night, and walking back to the car, I saw exactly 3 of the bread trays outside the front door of a restaurant after closing. The bottom tray even had wheels. Unfortunately, DH felt it necessary to remind me that just because they were outside the door after closing didn’t mean they were there for the taking. I’m sure someone was supposed to pick them up? I need exactly 3 trays for my soap. Maybe the restaurant wants to give them to me and I should call?