Create endless obstacle-course layouts with this 11-piece stepping stone set (4 small, 4 medium, 2 large, 1 extra-large). The embossed, non-slip tops help kids step with confidence while building balance, coordination, and muscle strength. Mixed sizes support different skill levels and can double as a playful way to learn colors and numbers. Made from child-safe Pp, each stone supports up to 177 lbs and is washable and fade-resistant for long-lasting use. Nesting, stackable storage keeps play areas tidy. Astm and Cpsia compliant and recommended for ages 3+.