... confirms to international standard, innoxiously, environment-friendly and long lifespan. Compared with TPU, PVC plays not so ... material functions, but cheaper.2), generally, how long can people stay in the water ball?a). ... minutes rides when used on hot sunny days.b). as long as you wish, if the balls are ... WATER FUN INSIDE THE "LOVEBALL"We use a long safety rope, at night, thus allowing for floating ...