Review on Pack of 2 Hair Dye Bottles - 5oz Squeeze Bottles with Angle Tip for Precise Hair Color Application by Andrea Jackson

The measurement markings on the bottle start at 100 and increase to 260 in half increments. 100 what? It doesn't speak. It is not metric or imperial (US standard). I had to measure and mark liquid ounce indicators with a Sharpie marker. As soon as I did this, I noticed that none of the labels on the bottle matched fluid ounces for any of the metering systems. Since you can't measure color and developer accurately, this is a big "not recommended" as you don't know what the end result will be. Also, the tip opening is too small to apply paint. And if you decide to cut it larger, you lose the bottle's separating function.