Create engaging and attractive designs with this Securit Liquid Chalk Markers. Use them on your pavement boards, chalkboards and windows to create memorable messages. These medium white chalk markers are weather resistant, as well as smudge and fade proof – which makes your message durable until you’re ready to wipe the slate clean and start again! This resilient glass and board marker is great if you want to keep your marketing message on display for longer. To remove this liquid chalk, a sponge or damp cloth will do the job.