America’s favorite dustless chalk. Makes clean distinct marks on chalkboards for maximum visibility and contrast, erases cleanly with no ghosting. This superior chalk is 95% calcium carbonate, free of foreign materials that work their way into the board surface causing scratching, streaking and pitting. Round stick is 3-1/4” x 3/8” fits many chalk chucks. Certified non-toxic. Your choice of white or yellow. 12 sticks per box. Assorted Color Box sold below. $0.72, 12/$7.20, 72/$41.76, 144/$72.00Color: White 31144Yellow 31344 Prang® Hygeia® Chalk - Box of Assorted Colors* Assorted colors: 1 stick each of red, green, light blue, dark blue, pink, teal, purple, tan and orange and 2 sticks of yellow. * Erases cleanly with no ghosting * Extruded chalk is stronger, reducing breakage * AP certified nontoxic 61400$0.80, 10/$7.50 Prang Hygeia Chalk - Assorted Colors - Pack of 100Pack consists of five boxes of Assorted Chalk (each box contains 2 sticks each of red, yellow, green, blue and orange), four boxes of white and one box of yellow. 61404$7.50 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 488 or Internet Sales.