Topless glass railing usually use a frame and then insert the tempered glass, or clamp the tempered glass with a glass clip, or you can fix the tempered glass with screws. Topless railing tempered glass thick:10mm (3/8"),12mm(1/2") Or tempered laminated glass of similar thick . The tempered glass size : Can be customized to any size and shape according to customer requirements Color : Clear Glass  ,Etched Glass ，laminated glass Inspection standards：ANSI Z97.1 ,16 CFR1201 ,CAN CGSB 12.1-M90 ,CE-EN12150