Starsouce 6Mm Reversible Dry Erase Chalk Marker With Chisel Tip, 8-Piece Set, Fluorescent Markers For Led Menu Boards, Bistro Boards, Drawing Boards, Pop-Up Boards, Glass Windows, And Whiteboards

Specification Product Name: Chalk Marker Pens Tip: 6mm Bullet & Chisel Tip Weight: 198gr Packaging: 8 x fluorescent marker pen Note 1.Shake the pen gentle with cap on and up-right remove cap 2.Press the tip for 30-50 seconds until the tip fills with ink.Do not push too hard, patience to wait, the ink will flow.If the pen still not work then pls shake and press it again.3.If the pen write unclearly, you can try shake it for a while.Pls cap the pen tightly after use 4.Use it only on non-porous surface 5.The pen only flash on LED Board Though the marker pen body shows it is window marker, but our chalk markers can write on window, whiteboard, LED board and the blackboard.You can try it.Any problems pls feel free to contact with us, we are here to help! '