Contents opened (only 4 sheets included). A My Number Card case (protective sleeve) featuring a Young Oyster design is now available. It protects the card itself while concealing information. It's a light and thin card sleeve, so the weight and size of the card don't change much when stored in the case. The adorable character and vibrant colors create a stylish design. Package: Approximately 9.5cm (H) x 9.5cm (W) x 0.2cm (D) Body (each): Approximately 6cm (H) x 8.8cm (W) Please refrain from purchasing if you are sensitive to items stored by individuals.