I-1, inkqubo yokukhwela i-Gravity ngokuyinhloko iqulethwe ngamacandelo amabini: i-static racking structure kunye ne-dynamic flow rails.
I-2, ii-Rail ezihambayo ezinamandla zihlala zixhotyiswe ngeerola ezibanzi ezigcweleyo, ezibekwe ekunciphiseni ngobude berack.Ngoncedo lomxhuzulane, i-pallet ihamba ukusuka ekupheleni kokulayisha ukuya ekupheleni kokukhulula, kwaye ilawulwa ngokukhuselekileyo ngamabhuleki.