Crash glass mosaic looks like broken glass, but it does not have sharp edges or corners. Each piece is irregular and different, so you get a great variation to your mosaic works. Transparent, ideal for lanterns. Pieces are smooth from the bottom and the surface. The thickness of a piece is 4 mm, lenght approx. 1 - 4 cm. Package 500g, includes approx. 190 pieces, covers approx. 28 x 28 cm area. Frost resistant.