Color changes from purple to golden-green. It’s mesmerizing and beautiful. 20oz & includes a straw. Cold liquids only - hand wash only —————————- Please take note— *I generally ship Saturdays. This means if you order on a Sunday, it’s likely to not go out until Saturday. There’s always a chance I may ship sooner during the week but I cannot make promises. >> Potion Potion bottle Magic Witchy Halloween Spooky Cute Coffee Colorchanging <<