White Lye is the original way to clean your water based paint products off your brushes. Lye soap is also a very gentle way to clean your wax brushes too. This 3 inch by 3 inch bar is the perfect size. Made by a wonderful soap company here in the USA, this natural soap is our favorite for cleaning your wax brush- after using Mineral Spirits. It keeps the natural bristles strong and resilient by conditioning them as it cleans. White Lye also works great for our natural bristle furniture paint brushes. Safe to use on any brush…and yourself! Get clean after a day of painting and waxing the natural way. Guaranteed you will LOVE IT!