The 100 ml square Mascara Glass Bottle of 25 mm ROPP 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 inert and unreactive and prevent chemical leaching into the packed product. The glass jar is designed for packing chilli sauce, hot sauce, vinegar, herbal oil, massage oil, ayurvedic oil, etc.