KitAbility Zig Posterman Waterproof .5mm Tip 4 Color Marker Set KitAbility Zig Posterman Waterproof .5mm Tip set includes all four extra fine colors available. Zig Posterman Waterproof .5mm Tip Markers feature a extra fine tip that creates thin lines on labels, glass, plastic, and more. Colors include white, black, gold, and silver. Markers are waterproof but wash off easily with Windex, xylene free, non-toxic, odorless, and highly opaque. Ships in a sturdy, reusable storage box with color chart and includes instructions on priming and storing your Zig Posterman Waterproof markers.