♦ This Elevate Essentials Pumice Stone for Pool Tile Cleaning Block works great for cleaning lime and mineral deposits from pool tiles. ♦ Chemical Free and Eco-Friendly. ♦ Pumice Sticks have been used for years to remove stains and build up on hard surfaces. ♦ Porcelain is harder than pumice and so you can use a pumice stone or stick on any porcelain surface - but not on fiberglass or other scratch able surfaces. ♦ Works great on toilets, bathtubs and sinks. ♦ These sticks easily are shaped to fit hard to reach areas. ♦ Try the smaller size for small tight places, the medium size for tougher jobs and the Large size for cleaning areas like pool and spa tiles from mineral deposits. ♦ Safe to use and store around animals. ♦ Use these pumice stones for toilet cleaning and see great results. This Pumice Stone is also great for: ♦ Remove hard water ring in toilet bowl, sinks and bathtubs. ♦ Remove rust on the barbecue racks, iron cookware. ♦ Remove calcification build-up on grills, tile, and concrete. ♦ Remove scale from the swimming pool. ♦ Remove stain that you failed to remove. ♦ ♦ ♦ Please don't hesitate to contact us if you have any questions about our products. We will solve it on time and provide you with the most satisfactory answer.