These Expo Whiteboard Markers are ideal If you’re in a high-stakes meeting, high-school classroom, or running a university tutorial, if there’s a whiteboard up-front. The ink in the Expo has a non-offensive low odour, non toxic and provides dense bold colours. This ink can be dry wiped from whiteboards and surfaces like glass and porcelain without leaving a trace. It has a bullet nib that is 2 mm in size. The Expo an ergonomic shape and super comfort with barrel design for smooth flow from the beginning to the end. It is available with Assorted colours ink in this pack.