The whiskey glass bottle is a small delicate glass bottle that is easier to improve the experience of your customers. The bottle is made of high flint glass with high transparency and refractive index. Glass wall thickness is 3-5 mm and the vertical axis deviation is 1.1 mm. Thermal shock resistance is >35 °C while shock resistance is 0.9j.http://www.jiatongglass.com/gl....ass-wine-bottle/wine