Pentel: Pentel Wet Ease Chalk Make Chisel Tip 2-4mm Line Assoted Colous (Pack 4) Pentel Wet Erase Chalk Marker Chisel Tip 2-4mm Line Assorted Colours (Pack 4) The Pentel Chalk Marker has a valve-activated flow that helps to prevent against blobbing or leaking. The SMW26 is ideal for use on chalk boards and non-porous surfaces such as glass. It is suitable for both indoor and outdoor use making it perfect for menus, advertisements, timetables etc. It has a semi-permanent formula which wont run off in a light shower but can be removed with a wet cloth. Its chisel-style tip enables you to create a variety of effects with an approximate line width of 4.0mm to 2.0mm MPN: 17189PE EAN: 5011433137510 Pentel Wet Ease Chalk Make Chisel Tip 2-4mm Line Assoted Colous (Pack 4) Attributes: Colour: Assorted Ink Colour: White, Blue, Red, Yellow Line Width: 2-4mm MFR Part No.: 17189PE Type: Chalk Markers