Liquid Chalk

Size: 14x1.35CM
Tip: 5.0mm
Refillable Liquid Chalk
Water based ink, Easy eraser, Non-permanent.
Patented, Non-toxic liquid formula
Color: White, Blue, Red, yellow
Suitable: Whiteboard, Blackboard, Glassboard, Plastic, and Green Board
Passed ASTM D-4236&EN71

This product is not in the course of the dust flying, breaking the existing teaching in the chalk dust all over the place, Serious harm to teachers and students, provide a fresh air, healthy and comfortable learning environment for teachers and students.
Strive progress, innovation
To their wisdom and efforts so that more students benefit, education for the world to contribute to a force.