The UMARK A10 is the best valve-style paint marker you can buy, and we've tested them all. We've combined six vivid colours into one package for artists, gardeners, and others who need a range of long-lasting colours. The A10 will write on dry, wet, or oily surfaces and dry quickly. Great for marking all surfaces in the fabricating, construction, and assembly industries. Very useful in the garden
for marking plant stakes, plastic markers and tags. Marks withstand sun and rain without fading. They re-prime quickly if the cap is left off. Colours included are red, orange, yellow, green, blue, and violet.