Hourglass Sand Timer-Inspired Glass,Home,Desk,Office Decor (6 Inch, Gold 15 Mins) Made By high borosilicate glass ,100% hand-blown made clear glass .Correct minute works control of quality . 15 minutes - Copper color , 30 minutes - gold and black 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 infos to our customer service team and all shipping issue will be soon solved.