The self-adhesive MATRIX coin holders in white or black provide optimum protection for your coins. Made from strong card with 100% chemical softener-free, anti-glare film. Handling of coins without touching the surface. Simply place the coin in the open frame and press the 2 sides together. To activate the adhesive, tightly press the coin holder closed. The holder is a secure and airtight container for your coin. The coin holders can be labeled if desired. Overall size: 50 x 50 mm (2 x 2").