Hold 2 Badges: Inner size: 3.5" L x 2.2" W. Suitable for 2 standard-sized cards, such as credit cards, ID cards, access cards, driver’s licenses, etc. BUT ONLY FIT FOR 1 thicker card like proximity card or RFID badge! Easy to Use: Practical thumb slot allows you to slide cards in or out with just one finger. A cinch to insert or remove your badges without effort. Crystal Clear: Highly transparent windows on both sides, presenting you with super clear visual effect. Quickly read your cards to make punching in and out faster. Heavy Duty: Made of thick and sturdy plastic (PC), the card protector effectively resists cracking, heat, wear or breakage. Effectively protect your cards from damage, bending or getting lost. Portable to Carry: Convenient to attach it to a retractable badge reel, lanyard, strap or string through the top slot. Great for office staff, firemen, workers, students, doctors, etc. Uniclife 2 Pack Thumb-Slot Badge Holder Clear ID Card Holders with Easy Access Vertical Plastic Case Hard Card Protector for Office School IDs Credit Cards Proximity Key Cards Driver’s Licenses