... Timely delivery Water roller ball,plastic roller ball,water walking roller Specification:2.4x1.7x2-3m(length can be ... ball floats on water based on the two PE wheels, even the TPU material broken by the sharps ... feeling with the water, they will feel they are walking on water, it's more fun!! 5.The ... new roller ball is easy replaceable, the two PE wheels and the stainless steel bearing will not broken, ...