Polyscience Polypropylene Insulating Balls

About this item Minimize heat loss and evaporation with these hollow floating balls. Quantity: 400 units per bag. Diameter: Ø 20 mm. Creates an insulating blanket in any open bathroom, reducing heat loss by 75% and evaporation by 87%. Helps to keep vacuum packs under water. Reduces hazardous fumes and splashes. Suitable for use at temperatures up to 110 ºC and with most fluids.