Durable material: the pool stain remover tool are made of plastic and FINE pumice stone. These were great to scrap the calcium build up on the pool tiles. The stone doesn't crumble away quickly like the regular house pumice stones. When pool brushes, wire brushes, grill brushes, and sandpaper don't work, try this pool pumice stone. Effective for pool rust spots caused by metal objects.Affixed to the end of the pool brush tube, and with very little effort, all the stains are gone! Easily attache to standard pool telescopic pole. Wet then rub stained/scaled surface until clean, Effective when using with water or acid Pumice stone with easy-clip handle for using with standard 1-1/4" pool telescopic pole. Great tool for cleaning stains and calcified surfaces. If you've tried lots of ways to get the hard water build up off my pool tiles (vinegar, fine sand paper, chlorine tab) nothing worked. Use it to remove calcium and hard water deposits on the tiles in your pool. It held up far beyond your expectations and did its job very well. It doesn't crumble and disintegrate like most pumice stones. It's also been great at removing stains in the plaster finish. Pool Stain Remover Pumice Stone Chlorinator Cover Pool Suction Cover Pool Cleaner MX8 Sweep Hose 39" Pool Hose Weights Pool Main Drain Gaskets Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 11 3.6 out of 5 stars 7 4.1 out of 5 stars 16 4.0 out of 5 stars 14 4.1 out of 5 stars 3 5.0 out of 5 stars 6 Price $15.99$15.99 $37.99$37.99 $14.99$14.99 $29.99$29.99 $12.99$12.99 $11.99$11.99 Model Same As Original Same As Original Same As Original Same As Original Same As Original Same As Original Premium Quality ✓ ✓ ✓ ✓ ✓ ✓ Compatible with brands Standard 1-1/4" Pool Telescopic Pole For Hayward CL200 CL220 Inline Chlorinator Universal For Zodiac X7 T3, T5, Mx6 Mx8 pool cleaner Universal 7 3/4" OD