Most Penny Sleeves on the market are actually too big for the cards they are designed for. You will be able to sleeve one of your standard cards in these Mayday brand sleeves, then fit it INSIDE your old Penny Sleeve. That is how much better these fit!! 100 per pack.
The dimensions of the package says 2 5/8 x 3 5/8, however they are cut to fit the standard 2 1/2 x 3 1/2 cards. You will love these!