What are the differences between this http://lightake.com/detail.do/sku.5...gence_Test_Cube_Black_(Upgrade_Edition)-25569 and this one http://lightake.com/detail.do/sku.5x5x5_YJ_Magic_IQ_Test_Cube_Gen_2nd_White_(Spring_Edition)-28864 aside colours?
Which one is the one that everybody is sayng positive things?
Which one is the one that everybody is sayng positive things?