Moving Sand Pictures – Ocean Blue liquid with black sand, four types of white sands and a fine blue glitter. The double strength glass is framed with an anodized silver metal frame. Air bubbles hold up the sand creating unique scenes with every turn, pictures may take from just minutes to many hours to finish a scene. The black sand is heavier than the white sands so the sands will never mix. Some of the sands are transparent and some opaque giving the pictures a 3-D effect.