B – Tempered glass (6 mm polished tempered glass)., C – Stainless steel mirrors (304 stainless steel polished to no. 8 mirror finish)., D – Lexan Dura-Mir™ (6 mm polycarbonate sheet)., E – Plexiglas® (6 mm acrylic plastic, lightweight and shatter resistant)., L – Laminated glass (6 mm thick).