Features:* Protect your coins from damage * Transparent and flat double coating allows you to enjoy the front and back of the coin * Safe but easy to open and lock * , * Made of pure wood sandpaper, extra thick, extra hard, high transparency coating, circle aligned, edges cut neatly * The product is cheap, , easy to use and easy to carry.* Used for all kinds of coins, copper coins, silver coins, commemorative coins and gold coinsSpecifications:* Material: Plastic* Color: Transparent (as pictures show)* Inner diameter: for 21mm coins* Height: 4.93mm/0.19inch* Thickness: 2.4mm/0.1inch* Quantities: 100pcsPackage Contents:1 Set of Coin HoldersNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.