PC-8K Posca Broad Chisel Tip 4 Piece Pack Fluorescent Assorted Uni-Ball POSCA PC-8K 4 Pen Fluorescent Set Set Contains 1 of each vibrant fluorescent colour , Pink, Yellow, Orange, Green 8.0mm Chisel Tip Writes on almost anything, fabrics, glass, metal, paper, card, wood, stone etc Water resistant and fade resistant also odour free