Matrioshka is a system of wooden storage units that nest inside one another designed by Sasa Mitrovic  of TwentyTree and manufactured by S.C.S. plus & Ergomade . Like Russian matrioshka nesting dolls, the largest item holds all the smaller cabinets, which each hold each other and you just don’t know when it’s going to end

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Matrioshka Nesting Storage Units by TwentyTree