General description Protect your coins from damage with these 400 pieces of 21mm Round Clear Plastic Coin Holder Capsule Boxes. The transparent and flat double shell design allows you to enjoy the view of both the front and back of the coin. They are safe yet easy to open and lock, made from super thick, hard plastic with a high transparent coating, ensuring neat edges and alignment. Technical specifications Inner diameter: 21mm / 0.83 inch Outer diameter: 24mm / 0.95 inch Height: 4.93mm / 0.19 inch Thickness: 2.4mm / 0.1 inch Material: Plastic Color: Transparent Package Contents 400 x Round Clear Plastic Coin Holder Capsule Boxes Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.