Nb. POSTAGE ON THIS ITEM IS £4.00. PICK THE OPTION IN SHIPPING CART MENU!! Anything except spray paint! 
What are they for?
The Uni-Ball ChalkGlass marker is designed to create decorative designs on non-porous surfaces, often used to attract attention to shop windows and display boards. These are most commonly found in small businesses, cafe's, restaurants, bars, butchers, patisseries and more.
How do they work?
The pens are fitted with special fibre tips, with a built-in pump action mechanism. You simply push the tip against the paper several times to get the ink special ink flowing from within the pen. The ink is water-based and highly opaque, suitable for writing on surfaces such as glass, chalkboards, plastic, metal and more. Once your design needs updating, you can imply wipe away the original with a damp cloth, let the area dry and then create a new design.
What's included?
Eight high-grade chalk markers for creating colourful designs
Colours: Red, Yellow, Blue, Pink, Green, Orange, Purple, White
Supplied in Uni-Ball packaging