Expo-2 In 1 Dry Erase Markers. The dual-ended design gives you two colors in one marker! Double the color plus a versatile chisel that marks three line widths make it easy to track, schedule and present. Highly visible, low-odor ink is great for both the classroom and office. This package contains two 6-1/4 inch long dry erase markers with four colors total. Conforms to ASTM D4236. Imported.