Pre cubed packaging foam set, please choose the type from the drop down list above. Charcoal pre cubed foam, 5 layers of 1"/25mm thick, plus 6 layers of 12mm lining foam. Charcoal pre cubed foam, 5 layers of 2"/50mm thick, plus 6 layers of 12mm lining foam. White Ethafoam heavy duty pre cubed foam, 5 layers of 1"/25mm thick, plus 6 layers of 12mm lining foam. White Ethafoam heavy duty pre cubed foam, 5 layers of 2"/50mm thick, plus 6 layers of 12mm lining foam. All layers are 560mm x 350mm wide (22" x 13.8" aprox.) All sets contain 11 layers in total.