UNI-Ball POSCA Marker Pen PC-17K - XXL Chisel Tip for Large Backgrounds - Single Pen - Available in 10 Colours (Black) : Amazon.co.uk: Stationery & Office Supplies
Uniball Posca Black Paint Marker - Tesco Groceries
Posca Uni-Ball PC-5M [8 Pen Set] includes 1 of each - Black, White, Pink, Red, Yellow, Green, Blue and Light Blue : Amazon.co.uk: Home & Kitchen
Uni Posca Standard Colour Marker Pens
uni POSCA Water Based Paint marker PC-3M - uni-ball