Photo 1 of ZINUS 7 Inch Metal Smart Box Spring with Quick Assembly / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin Twin Quick Assembly Smart Box Spring

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Photo 1 of ZINUS 7 Inch Metal Smart Box Spring with Quick Assembly / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin Twin Quick Assembly Smart Box SpringPhoto 2 of ZINUS 7 Inch Metal Smart Box Spring with Quick Assembly / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin Twin Quick Assembly Smart Box SpringPhoto 3 of ZINUS 7 Inch Metal Smart Box Spring with Quick Assembly / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin Twin Quick Assembly Smart Box Spring