Pentel Chalk Markers have a liquid chalk formula which imitates real chalk, but has a far superior performance and is ideal for use on blackboards, whiteboards, glass, ceramic, metal and non-porous surfaces. Pentel chalk markers are designed for use on conventional chalk boards and glass only.
 
	
Suitable for use indoors and out
	
Semi-permanent formula, won't run off in a light shower when ink has dried
	
Chisel-style tip
	
Valve-activated flow, no blobbing or leaking
	
Ideal for messages, decorations, parties, fetes etc
	
Suitable for use on conventional slate chalk boards and glass
	
Unsuitable for MDF, painted wood or vinyl boards
	
Medium tip gives approx line width from 1.5 - 4mm