A sanding sponge is a flexible, handheld sanding tool that is made of sponge or foam and coated with abrasive particles. It is used for sanding and smoothing surfaces, such as wood, metal, and paint.

To use a sanding sponge, wet it with water, wring it out and then use it to sand the surface you want to smooth. Sand with the grain of the wood and use light pressure to avoid damaging the surface.

After use, rinse the sanding sponge under running water and squeeze out the excess water. Allow it to dry completely before using it again.

The lifespan of a sanding sponge depends on the frequency and intensity of use. On average, a sanding sponge can last between 1-3 months with regular use.