These 20x20cm painted boards are in a variety of media, mostly acrylic like this one. They are suitable for framing, but are supplied unframed. I would recommend a tray frame. Ask for more info. Includes free UK postage.

There is a video of how I painted this here https://youtu.be/ZoexXlECTDQ?si=UncLZkEJKuCsEz_w