BiC 1721 Whiteboard Markers - BiC 841842, The BiC White Board Markers Black (Box of 24) use a low-odour, alcohol-based black ink that gives excellent writing properties and good erasability both immediately and after a few days.
Their soft, yet rugged acrylic tips write smoothly, but don't bend or retract under pressure.
BiC Velleda 1721 White Board Markers Black (Box of 24)