Universal Wheel Luggage

A person in summer a few clothes, 20 inches travel is very convenient;
Boys and girls use 24 inches to go to school and travel is fashionable.
26 inches is very big. When you go home, use it when you go abroad.
Specific dimensions are as follows (deviation of 1-3 cm for different measurement methods)
20 inches plus wheel height 55CM wide 34CM thick 21CM: net weight 2.5kg
22 inches plus wheel height 59CM wide 36CM thick 23CM: net weight 2.8kg
24 inches plus wheels 64 CM high, 41 CM wide and 25 CM thick: net weight 3.4 kg
26 inches plus wheel height 69CM wide 44CM thick 27CM: net weight 3.8kg