Glass block is consisted of two separate sections of pressed glass which are sealed together at high temperature. Containing a partial vacuum, it has the following advantage. Light transparence, Fire proof, Heat insulation, Sound insulation, Moisture proof. Being a green and energy-saving material, Glass Block is wide used in indoor decoration and outside wall Specification:190*190*80(mm) Package: standard paper carton Payment: L/C or T/T Net weight: 14kg per carton Standard: ISO9001:2000