Made By high borosilicate glass ,100% hand-blown made clear glass .
Correct minute works control of quality.3 minutes - Black color. 5 minutes - Copper color. 30 minutes - Creamy White color, ,Cocoa color?Copper color. 60 minutes - Cocoa color?Gold color.
It is both a work of art and a useful tool. Inspirited designer grand glass . 100% customer satisfy and quality guarantee.
Give a gift - For your Home ,Office , Desk, Science and Education. Makes a thoughtful gift for any occasion.
Free replacement if any shipping broken - Send info's to our customer service team and all shipping issue will be soon solved.