Package contains: 56 pieces coin capsules, 56 pieces gasket, one plastic storage box. Material: Coin capsules are made of thickened plastic material, highly transparent, smooth to touch, anti-oxidation, good sealing, durable and ideal for coin storage. Universal size: 20/25/27/30mm, inner gasket ring can be adjusted according to the diameter of the commemorative coin. Remove the excess washer, insert the commemorative coin, and secure it without shaking to prevent wear and tear. Design: Square with rounded corners for a smooth and delicate finish, crescent-shaped opening for easy access, thickened buckle for durability. Includes a storage box measuring approximately 16 x 9 x 4 cm, ideal for protecting coin capsules and keeping them sorted and organized. Suitable for storing various coins such as zodiac coins, commemorative coins, currency coins, and character coins. Compatible with common coin sizes including 1 yuan and 5 yuan. Specifications: Material: Plastic Storage Box Size: 16 x 9 x 4 cm / 6.30 x 3.54 x 1.57 inches Package Includes: 56 x Coin Capsules 56 x Gaskets 1 x Coin Storage Box Note: 1. Please allow slight measurement deviations due to manual measurement. 2. Due to differences in monitor displays, the actual color of the item may vary from the image.