... environment: Non poison, Non smell, Non pollution, Non cauterization, Safe.3) heat insulation: It can absorbs the energy from sun and ... sky, which can fall down the temperature in the room.4) PermanentNon fade, Non aging, Non servicing, Clean, Brightness,Luxury and ... , aquariums and aggregate projects. Size range: 1-3mm,2-4mm,3-5mm,6-9mm,9-12mm ,12-20mm.20-50mm(size ...