Lockable Wall-Mounted Mailbox: With ample capacity, you can deposit numerous emails and letters into this suggestion box, secured with a lock. Multi-Purpose Mailbox: Highly versatile, it can be used as a letterbox, postbox, or suggestion box. Wall-Mounted Design: The spacious interior can hold multiple messages for several days. The transparent window allows you to view the contents without opening the box. Outdoor Mailbox: This suggestion box with a lock can function as a donation box, ballot box, comment collection box, key drop box, charity box, or apartment mailbox. Confidentiality: Effectively helps protect confidential information in emails and complaints. Color: Yellow Material: Iron Size: 30 x 23 x 6 cm Package Contents: 1 x Mailbox Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.