woom 3 16" Kids green Hardly to be stopped The woom 3 supports children from the age of four to learn to ride a bike and continuously improve their skills. The upright seating position on the woom 3 helps kids maintain balance and allows them to always keep everything important in their field of vision. Weighing only 5.3 kg, the woom 3 is a true lightweight and thus the best (and favorite) companion for first longer rides.