Light up your drink with this 12 oz Mini Opaque Acrylic Tumbler with Lid and Straw – perfect for patio, deck, and outside fun, with built-in flashing LED lights. Great for kids and adults alike! Never forget where you set your drink down again! Dimension: Cup: 3.25″ x 4.5″; Straw: Approx. 7″ Volume: 12 oz LED Colors: Multicolor Mode: 8 light functions: * Red, Green, or Blue Steady * Red + Green Steady * Blue + Red Steady * Blue + Green Steady * Red + Green + Blue Steady * Color Change Batteries: 2 Replaceable AG13 Batteries pre-installed Weight: 0.29 lbs Printable: Yes Features: The LEDs’ many color combinations are calming and mellow compared to our other fun flashing products. To activate your 12 oz Mini Opaque Acrylic Tumbler with Lid and Straw , remove pull tab and press button located on the base of the cup.