Nickelodeon SpongeBob Sponge Bob Inflatable Outdoor Indoor Garden Kids Water Wading Swimming Pool. This children's wading pool with great Sponebob design increases the fun factor of your little ones. Simply unfold, inflate, fill with water and go! Diameter of the pool: approximately 102 cm 3-Ring-pool, Height: 25cm. Capacity: 21 liters (75%), Material: sturdy vinyl, incl. repair patches.