SRA Cases 2-Piece Foam Block Insert For EN-AC-FC-A501 Hard Case, 17.3 x 12.2 x 3.5 Inches 2 Piece foam block - one foam block and a single foam sheet It is easy to cut the foam and shape it into whatever you want. Foam Density - 24Kg per cubic Metre Dimensions - Large block 17.3" x 12.2" x 3.1" (440x310x80mm) Dimensions - Thin foam strip 17.3" x 12.2" x 0.4" (440x310x10mm)