Silverlake Large Craft Foam Block - 11x17x7 EPS Polystyrene Blocks for Crafting, Modeling, Art Projects and Floral Arrangements - Sculpting Blocks for DIY School & Home Art Projects : Amazon.ca: Home
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Geofoam - EPS Foam Blocks | Geofoam International
GeoFoam - EXPOL
White Styrofoam/polystyrene/eps Foam Block 12 X - Etsy Canada