Biloba 4.8 Inch Puff Sand Timer/Hourglass 30 Minutes - Copper Color Sand - Inspired Glass/Home, Desk, Office Decor 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 colorCopper color. 60 minutes - Cocoa colorGold 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.