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A composite suitcase,which consists of a couple of duplicate cases,can be used mainly by couples in different ways,it can seperate into two parts to carry on under the circumstances of having much luggage.As for a seperated structure it is used to be carried by two respective people aiming at promoting sentimental communication.When you are tired you can sit on the top of the composition where it is sunken,likewise,the handle also fits.You can sit on I-Walk especially when there is no seat on subway or at bus stop.
Yi-Qi Xiao,Li-Long Zhou,Mo-Mo Chen