Introducing the 20 ounce Knock'er Loose tumbler, featuring a gritty grunge design that is sure to turn heads. This tumbler is the perfect conversation starter, whether you're at the office or on the go. Made with high-quality materials, it will keep your beverages at the perfect temperature for hours. The Knock'er Loose image is edgy and unique, making it the ideal accessory for anyone with a bold sense of style. Add this eye-catching tumbler to your collection and stand out from the crowd.