Sculpture Block is an extremely lightweight, easy-to-shape, cost-effective alternative to wood and stone. It is ideal for all artists and 3D designers who are looking to create highly refined and detailed sculptures, 3D models or prototypes. Foam block will not expand, contract or warp while providing long lasting results. Easily shaped using a saw, rasp, scraper, chisel, file or clay tools and can be refined with sandpaper. Simply prime the surface with a primer or gesso and add any type of acrylic or oil paint and decorate to complete your design. Can be glued with all types of glue. Low-dust, high density polyurethane foam. Use a mask when sanding. 2 blocks per package, measures 15 x 7.5 x 5cm (approximately 6x3x2"). Recommended for ages 6 and up. AP Seal, non-toxic.