Yes these are Standard size card sleeves. They are specifically designed to fit 63.5 X 88 MM cards but the external dimensions of the sleeves are
Card Game Card Sleeves (63.5x88mm)
Mayday Games 7077 Clear Premium Card Sleeves 63.5x88
Wholesale Sleeve Display + 432 packs of Mayday Sleeves Popular
Mayday Games Card Game Sleeves 63.5mm x 88mm and 65mm x 100mm
Mayday Games - Card Sleeves & Tabletop Games For Families
MDG7125 MAYDAY GAMES Square Board Game Card Sleeves Clear Size 80
7 Wonders Sleeves - Mayday Games
Card Games - Mayday Games
Shop Standard USA Chimera card sleeves now while supplies last. With high demand, it's hard to keep these in stock. Perfect for Munchkin™ and
Standard USA Card Sleeves (56x87mm)
Mayday 100 Yucatan Card Sleeves 54mm x 80mm, Accessories
Shop Mini USA card sleeves which are crafted to fit all of your 41x63mm cards. Great for Twilight Imperium, Warrior Knights, & more!
Mini USA Card Sleeves (41x63mm)