Made of high quality aluminum, beautiful and practical, durable and easy to scrub. Adjustable perpetual calendar, you can slide the month and calendar, very creative. The base is stable and durable, and the design is simple and easy to use. It replaces the paper calendar, which is more environmentally friendly and does not need to be replaced every year.It is beautiful, practical, durable, easy to clean, and does not occupy too much desktop space.The date and month of the perpetual calendar can be adjusted manually.You simply scroll the circle to determine the month, and then move the date pad to determine the date. The space below can be used for notes, memos, etc. 4.1″ L x 3.4″ W. The prices for 7000pcs or over are based on ocean shipments.