Project Erasable Poster Markers offer bold colors that you can erase - just in case. Ink from these markers erase thoroughly from most poster board and heavy cardstock. Mistakes can be neatly erased so you can create confidently and worry-free. These markers are perfect for school projects, presentations and more. Ergonomic grip is comfortable for children to hold. Chisel tip nibs make thick or thin lines. Specially designed eraser is made to last and won't crumble or wear down. Markers are essential for creating better school projects and posters at science fairs, art class and beyond. Set includes Erasable Poster Markers in a colorful array of red, yellow, green, blue, purple and black. Safe, nontoxic markers are recommended for children ages 6 and up.