Robust and dimensionally stable block for sitting, playing and building. This medium cube can be arranged to create interesting play areas, obstacle courses or relaxation spaces. Select from a variety of fabric and synthetic leather options to add a colorful tone to any space. Can be individually combined as a seating or lying surface. Perfect for early learning centers, children's libraries or classrooms. Material: firm foam core RG 25/40; removable zipper covers that are machine washable with non-slip bottom.