Features:

• The Pack Has Two Pcs Ink Cartridge, One Already Inserted In The Marker And Another In The Packet
• Economical, No Need To Buy New Markers Again And Again, Just Fill Ink And Use
• Whiteboard Marker (Refillable Ink Directly In The Ink Cartridge)&Nbsp;
• Visible Ink In The Cartridge, Long-Lasting Ink Supply
• Refillable 4X&Nbsp; For Maximum Value
• Vivid, Dense Writing Clearly Visible From A Distance
• Up To 43% Savings Over Traditional Dry Erase Markers
• Good For Teaching, Regular Use, School, Offices &Amp; Home