This product is made of artificially blown high borosilicate glass, which is clear, heat-resistant and explosion-proof, comfortable to handle, fashionable and simple in design, and full of style. It is used for tea cups, desserts, oatmeal breakfast cups, which is very beautiful. High borosilicate glass (also known as hard glass) is made of advanced production technology by using the conductive characteristics of glass at high temperature and realizing glass melting by heating inside the glass Because the coefficient of linear thermal expansion is (3.3 ± 0.1) x 10-6 / K, also known as borosilicate glass 3.3 inch It is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high transmittance and high chemical stability Because of its excellent performance, it is widely used in solar energy, chemical industry, pharmaceutical packaging, electric light source, process jewelry and other industries Style:C Colour:Transparent Material:glass Size:13.5 x 7.4cm Package Contents: 1 * Glass cup Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.