Wall sanding sponge is a tool designed to prepare or clean rough surfaces, such as plaster, before painting or applying other finishes. Material: They are generally made of synthetic nylon fibers that provide durability and resistance, suitable for use on external surfaces and in heavy work. Function: Helps create a more uniform surface, removing imperfections, burrs or excess material, often in conjunction with water or other cleaning/preparation products. Versatility: Many used in civil construction, but also used for cleaning cars, washing cars... Dimensions: 16*10*5cm.