Mayday Game Card Sleeves 2 1/2" X 3 1/2" (100 Pack) CUSTOM SLEEVE FIT - Expertly engineered card game sleeves to fit and protect all your favorite games with cards sized 63.5 mm x 88 mm (2  x 3 ) STANDARD PROTECTION - These sleeves are 40 microns thick, perfect for the casual gamer or for the serious gamer who prefers slightly thinner sleeves COMMON GAMES - For popular card games such as Ascension, Boss Monster, Exploding Kittens, Game of Thrones LCG, Joking Hazard, Pandemic, Pokmon Trading Card Game, Star Realms and more ARCHIVAL SAFE - Acid free and PVC free card sleeves are made of clear polypropylene for easy handling and visibility of game cards, and for protection that is 100% archival safe MAYDAY GAMES - These protective sleeves are founded on the belief that any game worth playing is worth protecting. Bring families and friends together, and make the fun last.