View 3 of **new** Amazon Basics Smart Box Spring Bed Base, 7-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 7-Inch Smart Box Spring

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View 1 of **new** Amazon Basics Smart Box Spring Bed Base, 7-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 7-Inch Smart Box SpringView 2 of **new** Amazon Basics Smart Box Spring Bed Base, 7-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 7-Inch Smart Box SpringView 3 of **new** Amazon Basics Smart Box Spring Bed Base, 7-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King 7-Inch Smart Box Spring