The universal desktop calendar is made of aluminum, very smooth surface and anti-rust, won't tear like paper. Spin the wheel to adjust the months, move the square plate to adjust the days. With its small size and light weight, it is suitable for any desk decoration. This calendar is the most eco-friendly one, can be used for decades, do not need to change calendar every year, perfect for trade fairs, public relations, conference celebrations, anniversary celebrations, awards commemorations, advertising promotions, business gifts, and more. Custom logo is available.