As a THANK YOU for your $20 donation, you can enjoy this 2-in-1 Tumbler and Lunchbox Cooler Combo as a gift from us. With one attachment, you can use your tumbler for coffee, tea, or mixed drink... with a switch of the top, you can use as a standard can or bottle keeper!  Rated 24 hours for cold; 12 hours for hot.  We appreciate you supporting your favorite local water rescue volunteers!