Test your knowledge when telling time. Each number space features a mathematical equation to keep your math skills sharp. Black clock face is made to look like a chalkboard with each math equation painted to look like white chalk. The perfect gift for your favorite brainiac. Made of plastic, with silver-toned metal hands, requires 1 AA battery, not included. Measures 11-3/4" in diameter.

• Each number space features a mathematical equation to keep your math skills sharp.
• Black clock face is made to look like a chalkboard with each math equation painted to look like white chalk.
• The perfect gift for your favorite brainiac.
• Made of plastic, with silver-toned metal hands, requires 1 AA battery, not included.
• Measures 11-3/4" in diameter.

Each number space features a mathematical equation to keep your math skills sharp.Melville Direct