Size: the storage box measures approximately 215 x 135 x 40 mm. The storage box is made of high-quality pine wood and offers space for 20 plastic coin boxes. The transparent piggy bank is convenient for storing, viewing and changing coins. . Good protection against leaking coins: the lid and bottom of the storage box are securely closed. Our storage box has good moisture-proof, dust-proof and antioxidant ability, which can protect the parts safely. . High-quality coin capsules: The crescent-shaped opening design is conducive to opening the coin storage box. Anti-dust, antioxidant, very durable and cant hold parts larger than 30mm. . Adjustable EVA foam gaskets: Equipped with 20 assorted EVA foam gaskets, the inner ring is adjustable and can be adjusted to the size of the room. The foam gasket keeps the parts in place and protects your parts well so they wont slip and scratch. . Exquisite coin organizer: The high-quality bronze hardware lock is easy to open and close. The wooden coin collection box is polished, and the smooth surface is perfect. It can be used as a business gift and a decorative holiday gift. .