Best Seller | Cal-Mil 3062-15 Chalkboard Pen, White The Chalk Markers by Cal-Mil: Chalkboard Pen, 1/4 dia., white ( Cal-Mil - 3062-15 ) - Coming in white, the Cal-Mil 3062-15 chalkboard pen is perfect for writing on dark chalkboards, making messages and advertisements stand out. This unit measures 1/4... ... more Cal-Mil 3062-15 Chalkboard Pen, White The Chalk Markers by Cal-Mil: Chalkboard Pen, 1/4 dia., white ( Cal-Mil - 3062-15 ) - Coming in white, the Cal-Mil 3062-15 chalkboard pen is perfect for writing on dark chalkboards, making messages and advertisements stand out. This unit measures 1/4... KaTom | | $22.60 $12.20 go to store |