Whiteboard available for checkout

A desk-sized whiteboard with two markers and an eraser are available at the circulation desk for four-hour checkout, in-library-use-only.
To check out, scan both the barcode on the whiteboard and the one on the marker bag. Place the whiteboard inside the carry case and the marker bag in the case pocket and hand to the patron.
Once returned, place the whiteboard on the counter leaning against the reserve desk pillar with the bag behind it and the marker bag on the counter. Write on the board "Whiteboard available for check out / 4 hours / in-library-use-only" as an advertisement.