This is a small multicolor desktop calendar. It features month and day blocks that can be easily rotated to show the correct date. There is a small amount of assembly required, including super gluing (or taping) the bottom plate onto the shell of the calendar. The bottom plate locks the number blocks into the shell. To rotate the bottom numbers, use the inner knob and rotate until the desired number presents itself in the window. To rotate the top numbers, pull up slightly on the outer knob and rotate it until the desired number presents itself in the window.