recommended Age Grade is over 4 years, not for children under 4 years- Package includes: 1 x Lunch Bag, 1 x Kids Backpack.- Dimension: Backpack size: 15.8 x 11.8 x 5.9 inches (40 x 30 x 15cm) , 1lb (0.45kg) .Lunch bag size: 10 x 7.5 x 3.9 inches ( 26 x 19 x 10cm ), 0.5lb( 0.23kg ).- Our Kids backpack set is suitable for many occasions, school lunch, outing lunch, camping. They both have side water bottle pocket, you can put thermos or umbrella in it.- If you don't need a set, you can find them sold separately in our shop.- Any questions, feel free to contact, we will reply within 24 hours.