Features: Brand new and high quality Safe inflatable wheel, Crawl in it like a hamsters, rock back and forth, climb on it, bounce on it, the laughs and smiles are inexhaustible Sturdy construction, made of thick, soft and durable PVC material. Easy to inflate and deflate. Allows inflation with air pumps, an electric pump is more efficient (not included). The outer diameter is 100cm/39.37inch, the inner diameter is 65cm/25.59inch. Recommended for ages 3 and up with adult supervision. Best birthday present, summer gift, Great Item for kids. Kid love free wheel around the pool in our inflatable Water Wheel. Specifications: Material:PVC Size:Approx.100x65x60cm/39.37x25.59x23.62inches Package Includes: 1x Inflatable Water Wheel note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.