Matador chimney 20 30 32 is made of borosilicate glass.

Heat-resistant glass
Made of borosilicate glass with low expansion coefficient and therefore heat resistant. It won’t break when you light the lamp. Dishwasher safe.

Melted tube-openings
Removes tension in the glass from the cutting of the tube openings. At last a chimney that stands normal usage!

Perfect craftsmanship!
Made in the Czech Republic.

Bulge chimney 21 30 21 “Lotus” is not made of borosilicate glass!