These coin holders are made of premium paper, smooth to touch, easy to install. It can easily help you organize and store coins of different denominations to avoid loss. Good gift for coin collectors to store and protects favorite coin. Features - Color: White. - Material: Paper. - Size: 3.50X3.50X0.01cm/ 1.38X1.38X0.004inch. - Suitable Size: 20.5mm; 25mm; 35mm; 40mm. - The collectors coin holders are made of paper material, and practical to use. - The sizes are 20.5/25/35/40mm, a suit for holding most kinds of coins. - It provide a great way to store your coin, easy to use and clearly display the value of coin. - It is very convenient for coin collectors to check and your coin collection. - You can share these cardboard coin holders with people who have the same hobby as you. Package list: 800 x Coin Holders