Amazon.com: AMZQNART Craft Foam Blocks, 1 in Thick 17x11" EPS Polystyrene Rectangle Foam Blocks Packs of 7 Pcs for Art Sculpting, Sculpture, Modeling, School and Home DIY. : Arts, Crafts & Sewing
What is Expanded Polystyrene (EPS) foam? The possibilities are endless!