Pentel: SMW56/4-BCGW Jumbo Chalk Make Chis/Tip Asst (Pack-4) For use on conventional slate chalk board and glass, these Pentel Markers contain liquid chalk, which removes easily with a wet cloth. Suitable for both indoor and outdoor use, the markers feature a valve action for a smooth, controlled ink flow. Ideal for displays, decorations, menus, information and more, the jumbo chisel tip writes a variable line width of 10 - 15mm. This assorted pack of 4 chalk markers contains red, yellow, blue and white. MPN: 17203PE EAN: 5011433114115 SMW56/4-BCGW Jumbo Chalk Make Chis/Tip Asst (Pack-4) Attributes: Ink Colour: Assorted Line Width: 10-15mmmm MFR Part No.: PE11411 Pen Type: Non Permanant Tip Size: Broad