Marvel Card Sleeves: Thanos - Rules of Play says:
Protect your game in a snap! These all-new Marvel Art Card Sleeves feature a silhouette of Thanos as he snaps to balance the universe. These card sleeves are not game specific and can be used to protect any deck of standard sized cards. Each pack has 65 cards and will have most TCG and CCG decks covered.
Each sleeve is 66mm x 91mm which is standard card size and has a smooth matte finish that keeps glare down and cards easy to read. Protect and customize your experience today!