Ideal for kids over 3 years old GIANT WHEEL ROLLER: The updated inflatable water wheel has a larger size, which owns 63 inch outer diameter, 43.3 inch inner diameter, and the width 33.5 inch. Our pool wheel roller allows kids at the height of 3 feet 7.3 inch (43.3 inch/110 cm) to stand on. COLORFUL RAINBOW STRIPES: Zcaukya inflatable water wheel is designed with clear appearance adorned with colorful board stripes among connections, looking so beautiful and rainbow-like at the distance, which would definitely leave people a deep impression and get so many compliments. EASY TO INFLATE & HOLD UP WELL: The colorful water rolling wheel is designed with a big-hole air valve to help inflate more quickly with an electric air pump or a hand pump. The inflatable could hold air pretty well without any leakage. Its thickness after inflated can be 10 inch which provides strong buoyancy to give kids a pleasant play experience.