It's material is borosilicate, she has the best quality as "Pyrex".
1. Non-porous tempered glass. It won't absorb food odors, flavor or stains.
2. Higher resistance to mechanical shock: Scratch resistant.
3. Higher resistance to corrosion.
4. Higher hygienic performance.
5. Can be used in oven, microwave, Dishwasher, Icebox, etc.
It's price is very competitive.