characteristic： Tempered glass, also known as tempered glass, is a kind of special glass. It is mainly used for furniture countertops, partitions, screens and craft glass doors in home decoration. Tempered glass has the following advantages: 1. Good safety, mesh cracks appear first when broken, and then become small obtuse-angle particles after being broken, with smooth edges and corners, which will not cause major harm to the human body, and is safer than ordinary glass. 2. High impact strength, more than 4 times higher than ordinary flat glass of the same thickness. 3. The bending resistance is large, 3 to 4 times larger than ordinary glass. 4. Good thermal stability, can withstand a temperature difference of about 110 ℃, the disadvantage of tempered glass is that the flatness is slightly inferior to other glass Diameter: 135mm Thickness: 20mm Material: Tempering glass High temperature and high pressure acid and alkali resistance Package includes： 2PCS Diameter 135mm Thickness 20mm Glass Flat Lens Tempering Glass Replacement LENS