This item is a Magic the Gathering playmat, from the Mythic Championship I Cleveland 2019, featuring custom artwork of Planeswalkers by Mark Winters, created for the event.
The playmat is embroidered, i.e. it has been stitched with thread on the borders to improve durability and to make it even more visually stunning.
This item is of considerable rarity since it was never sold outside of the event.
The playmat size is around 35cm x 60cm.