Checkmate is a savings app with over one million users that have saved $$$ on brands like Mercari.
The Checkmate extension automatically applies Mercari discount codes, Mercari coupons and more to give you discounts on products like Pokemon Wo-Chien ex Paldea Evolved Special Illustration Rare #257 PSA 8 NM-MT.
Checkmate users have also been loving these products from Mercari.
Users have been saving products like this to their collections.