Zig 20ml Painty FX Ink Refill in Poly Bag, Gold and Silver Fx ink refill xylene free paint marker with a 5-mm chisel tip Great for writing at steady widths Can also be used for sign-boards as the ink is permanent and highly waterproof Use it on a variety of surfaces including plastic, wood, glass, metal and more Package contains one 20-ml gold refill bottle and one 20-ml silver refill bottle