No More Glass alignment issues with the JAMAR | M17 Top Mounted Glass Balcony. Frame less Glass Jamar railing systems are specified to enhance a building’s architectural features and provide the user with the maximum amount of visibility. The Jamar glass railing systems came in 6+6mm, 8+8mm, 10+10mm and even 15+15mm laminated and tempered safety glass. It is available in clear, or tinted colors. Whether your project is an average home or commercial building, Jamar glass railing systems make it easy to create stunning frame less glass railings. At Jamar Nothing is Impossible!.