These Neutral pH sponges are designed for the safe dry cleaning of walls, ceilings, frescos and other surfaces. The sponge like pad consists of a vulcanised latex sponge formed onto a stiff blue nylon backing. Surfaces must be completely dry prior to use and must not stain or chalk. 

Approx size of sponge - 90mm x 65mm x 45mm

Soft version designed for sensitive base surfaces

Hard version for less sensitive surfaces.

Extra-hard version for non porous surfaces, such as masonry.