View 1 of Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 5-Inch Smart Box Spring ---- SIZE KING

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View 1 of Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 5-Inch Smart Box Spring ---- SIZE KINGView 2 of Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 5-Inch Smart Box Spring ---- SIZE KINGView 3 of Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 5-Inch Smart Box Spring ---- SIZE KINGView 4 of Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 5-Inch Smart Box Spring ---- SIZE KING