4 ounce bottle of bonsai lime sulfur. Bonsai Lime Sulfur (Calcium Polysulfide) for bleaching deadwood in the art of Bonsai. BonsaiJack Lime sulfur is a number one seller for many reasons. Features include…• Top grade ingredients• Free Shipping• Superior bleaching affect • Made in America• Sediment free via filtration• Guaranteed fresh • Satisfaction guaranteed or your money …