SRA Cases EN-AC-FG-C401-FOAM-CB 2 Pre-Scored Foam Blocks Insert for EN-AC-FG-C401, 20" x 7.9" x 2", Grey 2 Pre-Scored Foam Blocks 20" x 7.9" x 2" each - insert for EN-AC-FG-C401 Two foam blocks layered makes the foam a more manageable sizes when cutting Pre-Scored in a grid allows easy measuring and cutting Foam density - 24kg per cubic meter Each blocks dimensions- L: 20" x W: 7.9" x D: 2" (L: 530 x W: 200 x D: 50mm)