It can be used from around 2.5 to 6 years old, but my child was able to ride on it properly from around 3 years old. By the time they were over 4.5 years old, it became too heavy for me to handle, so I only used it about 2-3 times. The adult harness comes with a small pouch for keys and small items (photos 5 and 6). My child enjoyed it like being carried on my shoulders, and it was more stable than being carried on my shoulders, and it was great that my hands were free. I think it would be very useful for everyday use as well as for outdoor activities like hiking. ・Brand: PIGGYBACK RIDER ・Color: Orange/Black ・No instruction manual, with pouch ・Backpack-style child harness ・Upright baby carrier