CURVED TEMPERED GLASS Back This is made to protect the LCD from damage and scratches with specially processed glass that has been reinforced to increase shock absorbency. MINIMUM SIZE THICKNESS (C- BEND) 3.5MM TO 12MM THICKNESSSIZE: 500MM X 500MM, 1830MM X 2440MM MINIMUM SIZE THICKNESS (J- BEND) 5MM TO 12MM THICKNESS SIZE: 500MM X 500MM, 1830MM X 2440MM