2.5D Curved Edge Tempered Glass glass are light weight and with 0.3mm standard thickness. Genric Tempered glass helps protect your screen from damaging. The Glass is chemically treated at our State of Art Facility. We make sure you get the best quality product. The Tempered glass is tested multiple times before it is dispatched. Note: Tempered glass will be 1-2mm Smaller than phone size. This is done so that back cover can be applied on phone. This is not a defect.