The 200 gm Protein Plan Glass Jar with 70 mm RO Neck is a 100% non-toxic and 100% lead free, high-quality, clear (flint), food-grade certified, and microwave and dishwasher safe. These glass jars are also chemically inert and unreactive and does not allow chemical leaching into the packed product. The glass jar is designed for packing pharmaceutical and nutraceutical products, spices, dry fruits, candies and chocolates, powders (Protein, etc.).