Hello, lovely brick lovers. Build an entire year with our bricks calendar! Create the calendar you need with colorful bricks labeled with the days of the week, months and numbers 1–31. Follow the building instructions to rebuild the Brick Calendar every month! We also provide some special icon, such as birthday, lovely heart, banquet, etc. to remind your important days. A 4 ports USB Hub at the bottom connect your USB flash drive to your computer, or charge your mobile phone on your desktop. DIY perpetual brick calendar. 4 Ports USB Hub at the bottom. Rebuild every month! Includes special icon bricks, such as birthday, heart, banquet, etc.