Introducing Modern Home DIY Clocks for your home. Have an empty wall that needs a cool centerpiece? Modern Home DIY Clocks offer a 3D designs that pops out form your wall and makes a bold statement. Constructed of a lightweight foam, each number has a self adhesive back allowing it to adhere to virtually any wall in your house creating a unique clock. Design it any way you like. Requires one 'AA' battery which lasts up to 12 months. Clock can be built as big as you'd like. In the photo shown, the clock measures about 20" x 20".