Rit Dye More Synthetic 7oz-Graphite

used the product in boiling water to stain water bottles and it worked great, very effective and very ease to use for someone who had never dyed anything before. It came out with slight discoloration because of the original color of the water bottle but that can be avoided by using only on white clothing/items. I have been using that water bottle regularly for a few months and there is been no fading. (the original color of the water bottle was a light purple hence the slight purple hue)