SoftZone Building Blocks foster open-ended, creative, and constructive play time. These unit-style foam blocks introduce color and shape recognition, and early math concepts like doubling, comparison, and symmetry. These STEM blocks promote the development of motor skills, spatial awareness and hand-eye coordination as students experiment with different configurations. Allow kids to take a hands-on approach to lead their own learning while encouraging problem-solving, critical thinking skills and collaboration as they build with increasing complexity. Soft and lightweight, these modular quiet blocks fall over without making loud crashes. Blocks are designed for everyday use in classrooms and daycares, and perfect for the home. The soft foam core of each piece is covered in vegan leather. Building Blocks are GREENGUARD [GOLD] Certified for low VOCs, CPSIA compliant and adhere to CAL TB 117 requirements. Constructed with certified flexible polyurethane foam that meets CertiPUR-US program standards.