The UV meter wristband/bracelet is a very good marketing premium. You can use it to check solar UV radiation index levels. The higher the solar UV radiation, the darker the color change. Enjoy the sun and avoid sunburn with bracelet now. No batteries needed and it's adjustable for all ages. 9 3/8" L x 1 3/8" W
9 3/8" L x 1 3/8" W
Price includes 1 color, 1 side, 1 location. Add setup charge $30USD.