Contents are fine. The paint on the bottles got eaten away by a bottle that leaked. These do not leak.
You will receive two eight ounce bottles.
Novacan black patina turns lead lines (solder and came) black. Black patina is great for beginners because it gives bold solid lines to your stained glass project. Make sure your solder lines are clean of any flux residue, rough them up with a green scratch pad and apply patina liberally. Eight ounces.
This material is ORMD which is a consumer restricted material. The MDS may be found at http://dlstainedglass.com/MSDS.cfm Please use and handle with due caution.