No batteries. No wires. Just colorful fun! Watch in amazement as the Oggz slowly transform their colors, all without conventional batteries or wires! You can place them anywhere you want. Spice up your dinner table with ever-changing morphing light, use them to illuminate your child's next birthday party, or add a unique flare to any holiday or celebration. You can even put Oggz outdoors for that special event. The possibilities are truly endless! And here's the best part: There are no batteries to purchase! Oggz are completely rechargeable and come with their own recharging station. Don't forget to buy Oggz! Each measures about 3 1/2-inches tall.