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 Kimora Lee Simmons Barbie Doll NIB Gold Label, wrapped never opened mint.
Checkmate users have also been loving these products from eBay.
Users have been saving products like this to their collections.