Large-Capacity Single-Head Painting Art Graffiti Marker Whiteboard Pen Student School Office Stationery Erasable Meeting Sketch Product name: large-capacity easy-to-erasable whiteboard marker Writing length can reach 800M Product color: black, red, blue Pen body length: 140mm Ink volume: 3.5g Specification: 10 pcs/box Suitable for various places: glass, CD, cloth, metal, conference, wall, wood, paper and plastic, express delivery, logistics, decoration, conference, etc. Water-based ink, easy to wipe and durable, high handwriting cleanliness, excellent exterior light design, smooth pen barrel Comfortable grip, long time writing is not tiring, humanized pen cap design, convenient and easy to use Not easy to lose the cap, easy to write and easy to erase, conference pen, bright color, economical and durable