Premium Quality 2x2 Cardboard Coin Flips made from high-quality materials for safe and secure preservation of your valuable coins. These flips are ultra-white, thicker and more rigid then most flips on the market. Crystal Clear Window: Each flip is lined with archival safe crystal clear Mylar plastic, providing clear visibility of your coins from both sides. Window openings line up perfectly when folded, keeping your collection neat and professional. Coin Safe and Archival Quality: Flips are PVC-free, acid-free, and designed for long-term coin storage. Moisture Resistant and Dustproof: The Mylar lining ensures your coins remain safe from moisture, dust, and other environmental factors. Secure Packaging: Comes with a sturdy box which can be used to store your coins. Easy to Use: Simply fold the flip in half and staple shut to close. With one of the "whitest" surfaces available, you can easily write your coin details and notes on the outside, aiding in organizing your collection. Size Guide: Penny - 19.1mm opening | Nickel - 21.2mm opening | Dime - 17.9mm opening | Quarter - 24.3mm opening | Half Dollar - 30.6mm opening | Small Dollar - 26.5mm opening | Large Dollar - 38.1mm opening | 3-Hole Penny Size - 19.1mm x 3 opening Protect your valuable coins with these premium quality, thicker 2x2 cardboard coin flips. Crafted from high-quality materials, these flips offer safe and secure preservation for your cherished coins. The ultra-white, thick, and rigid cardboard ensures durability, while the crystal clear window allows for easy viewing. These coin flips are moisture resistant, keeping your coins in pristine condition. Their user-friendly design makes them easy to use, allowing you to store and display your coins with confidence. With their archival quality, these coin flips are an excellent choice for serious collectors who value the long-term preservation of their numismatic treasures.