Prevent the build up of limescale in your washing machine or dishwasher with this eco friendly magnoball the ball uses magnetic power to crystallise limescale particles in the water stopping them from clogging up pipes and sticking to clothes just pop the ball in the drum of your washing machine or the cutlery container of your dishwasher and use them every wash it saves money on harsh detergents and lasts for 5 years 65cm