West Design 5mm A1 Foam Board White (Pack of 10)

Amazon

Bienfang CFC-free foam centred board with resilient polystyrene core which resists denting and crushing The smooth surface is 5mm thick and can be easily cut Available in white colour Size: A1 Measures 841mm length by 594mm width

Euroffice

High quality foam board for various uses. Polystyrene core adds protection against damage. Completely free from CFC. 5mm thick, easy to cut. Can be shaped to your requirement. Size: A1. Pack of 10.