For the lights on the frame of the bike, you will need 3 AA batteries. Please note these batteries are NOT included.
The light valves on the tires do include batteries. If you need replacement batteries, you will need AG10 Button Batteries, also known as 389, 390, 189, L1130, LR1130, L1131.
This bike is for ages 3-7 and the maximum weight limit is 110 pounds.