edding 4090 Chalk Marker Chisel Tip - Non-Toxic Liquid Chalk Pen for Chalkboards, Glass, Windows, Blackboards - Perfect for Restaurants, Cafes, Classrooms & DIY Crafts

edding 4090 Chalk Marker. Contains highly opaque water-based liquid chalk, suitable for use on blackboards, mirrors and glass. Chisel tip allows for thick lines up to 15mm wide. Removable with a damp cloth. Shake and pump the nib a few times before use.