POSCA PC-1MR TWIN PACK MARKER PENS by Uni-Ball GOLD & SILVER - 1 of each Uni-Ball POSCA MARKER PC-1MR "Twin Pack" (1 x Gold + 1 x Silver) Water Based Paint Markers POSCA Markers Use Water-Based Pigment Ink to Produce Poster-Like Vibrant Colours Perfect for Handwriting Gift Tags or Personalising Greeting Cards Writes on: Metal, Glass, Plastic, Stone, Fabric, Photographs etc. - Virtually Any Surface! Non Bleed Ink Doesn't Feather & Doesn't Bleed Through Paper