This is the standard 3x4 Top-Loader which is by far the most popular rigid trading card holder on the market. We have imported this item directly from both Tawain (1988-1996) and now China (1996 to date). We have used the largest and most respected factory for almost 30 years! Only Cardboard Gold brand Top-Loaders can make this claim. Our quality, clarity, and super low, factory direct pricing is ONLY available directly from Cardboard Gold, Inc. and your Cardboard Gold Distributor!