Luminuous floor brick is made of toughen glass.13mm thick,30mm wide,150mm long,1.5 kilos weight.Coated with crystal on surface.application.e.g.inlaid in the floor in line as safety sign. Luminuous corner brick:made of toughen glass as well,seize will be followed later.suitable to be inlaid down wall near floor in line as safety sign to lead people to crawl out avoiding upward smoke in fires.