Warm Tips: - Please allow a 1-3mm error due to manual measurement. - The business card or suggestion paper shown in the picture is not included. - Please keep the key safe if the mailbox is not in use to avoid losing it. Features: - Durable & Convenient Suggestion Box: This suggestion box measures approximately 9.3x7.3x5.2 inches (LWH) and includes a 5x7 inch sign slot and a 4.7x1 inch side pocket slot. Made from high-quality thick acrylic material, it boasts a solid and stable structure for long-lasting use. No assembly is required, making it easy to use. It can be mounted on a wall or door, or placed on any desktop. - Upgraded Sign Slot Design: The non-detachable sign slot enhances durability and allows for flexible use across various occasions. - Safe Lock Box: This suggestion box features a sturdy and reliable lock on the side, ensuring the security of internal documents and information. It is ideal for maintaining the confidentiality of suggestion letters, business cards, ballot tickets, or tips. The box comes with two keys to prevent loss, making it convenient to open and retrieve contents. - White Acrylic Collection Box: The elegant white design of this ballot box is perfect for securely collecting tips, suggestions, and confidential ballot tickets. The side pocket is designed to hold blank cards, letter papers, or pens, providing added convenience for participants.