Checkmate is a savings app with over one million users that have saved $$$ on brands like eBay.
The Checkmate extension automatically applies eBay discount codes, eBay coupons and more to give you discounts on products like 1989 UPPER DECK STAR ROOKIE #1 KEN GRIFFEY JR PSA 10 GEM MINT RC HOF HI-END💎🔥.
Checkmate users have also been loving these products from eBay.
Users have been saving products like this to their collections.