XL Foam Sheets for Film, Theatre, and More | Poly-Props Ltd.
30mm Non Adhesive EVA Foam
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Flightcase Foam - 30mm x 1000mm x 500mm
Easy Peel Tool Box Foam, Red or Blue Sheet (1200 x 550) 50mm 30mm or 20mm | eBay
SQINAA Foam Board High Density Foam Sheet 30mm White Premium Quality Used for Crafts Displays Model Making,300x400mm : Amazon.co.uk: Stationery & Office Supplies