Searched high and low for this exact glass when designing a bathroom.  In fact designed around it.  These are hard to come by, in terms of suppliers for a reasonable cost.  There area verity of sizes.  Installation required meticulous planning and care, everything must be in perfect line to have this panel "work".  The glass is thick, heavy and clear as crystal.  The mounting hardware is solid, the instructions are only okay.  It arrived in tight packaging.  6 months of use and no rust.