Photo 1 of Amazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King size measures 9 x 79 x 75.5 inches (HxLxW)

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Photo 1 of Amazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King size measures 9 x 79 x 75.5 inches (HxLxW) Photo 2 of Amazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King size measures 9 x 79 x 75.5 inches (HxLxW) Photo 3 of Amazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King size measures 9 x 79 x 75.5 inches (HxLxW) Photo 4 of Amazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly King size measures 9 x 79 x 75.5 inches (HxLxW)