This beaker is made using thick clear glass. Its rubber grommet joint connects to its clear glass downstem, which provides better filtration for your hits. The base is created using lightly fumed glass to add hues of blues and purple underneath its raked charcoal colored glass accents. These give the water pipe an awesome subtlety iridescent 'tiger stripe' appearance! This little bubble beaker comes with a matching clear glass slide with lightly fumed edges and has a blue colored glass pinch handle that fits right inside the downstem.