Tumbler handle featuring bright LED (light emitting diode) lights. Compatible with most 30-ounce tumblers, making the tumbler easy to hold and carry, while providing bright light for safety and convenience. Fits standard vehicle cup holders, and secures the tumbler with a rubberized non-slip grip ring. Includes a combined task light on the top ring and a lantern light on the bottom ring. Handle is ergonomic. Fully dimmable lights include a memory power setting and are water and impact resistant. 3 light modes: Task light emits 220 lumens (3-hour run time), Lantern emits 130 lumens (3-hour run time), 2-hour run time for both running at the same time. Requires (3) AAA batteries, included. Dimension: 4.625 In. W. x 4.625 In. H. x 6.75 In. D. Weight: 0.47 Lb.