So what is the difference from our standard card sleeves and our PREMIUM SLEEVES? The standard sleeves are a great thickness and quality for protecting your games on a budget. They are sold in packs of 100 and are perfect if you want to protect your work-a-day games from sticky hands, spills and general wear and tear. Our PREMIUM SLEEVES are sold in a 50 pack and are 125% thicker than our standard thickness sleeves. These sleeves offer a sturdier case and stronger protection for your cards. If you have a rare or expensive game and just can't bear to have the cards looking anything but pristine then this is the card sleeve for you!