Grog are the makers of top notch graffiti tools from the finest markers to inks all of which are rigorously handcrafted in Italy. This buff proof ink is one of the strongest on the market being super permanent and really hard to remove. The formula resists a plethora of chemical agents and the elements, without any fading. Coming in a squeezer marker it is easy to fill up and due to its soft plastic body, this marker can be easily squeezed allowing for perfect control making it the graffiti artists best friend. This model has a 5mm wide nib that can withstand use on most surfaces and comes in the colour diving blue. Grog Squeezer 05 Marker Buff Proof Ink Diving Blue 5mm Wide Nip