The Concave Glass is available in three styles: a simple, clean version without any decorations, a relief version with straight stripes and a swirled version with twisted stripes.

The Twist Glasses glasses are handmade and mouth blown from soda-lime glass in a family run glass factory in Bangkok. The factory has won several awards for the excellent social and work con- ditions. The staff comprises many highly skilled glass workers, together mastering an impressive range of techniques.