Fits 1/2 oz. Gold Eagles. Guardhouse Tetra coin holders are a great storage solution for your individual coins. Our plastic 2x2 snaplock cases contain a black EVA foam interior to hold your coin in place and provide a great background to let your coin shine again. Guardhouse 2x2 coin holders are made from sturdy acrylic plastic. Fits in standard 2x2 boxes for easy storage. Packed 25 per box.