The 1000 gm with Roll On and CC Neck Neck is a premium, high-quality, flint (clear), food-grade certified, FSSC 22,000 certified, 100% non-toxic, 100% lead free, and microwave and dishwasher safe. The weight of this bottle is 510 gm. These glass bottles are inert and unreactive and does not leach chemicals into your product even after repeated usage. The glass bottle is designed for especially packing ketchup and sauces.