EXPO Original Dry Erase Set, Chisel Tip, Assorted Colors, 6-Piece Versatile chisel tip allows for broad, medium, or fine writing. Bright, vivid ink provides consistent, lasting color. This Expo marker set is intended for use on whiteboards, glass, and most nonporous surfaces. Bold colors erase cleanly and easily Marker set includes 1 eraser; 1 liquid cleaner; 4 Expo chisel tip markers in black, red, blue, and green