Review on U.S. Pumice 1001 Pumie Scouring Stick, Heavy Duty - Remove Stains, Hard Water Rings, Rust, Paint, Carbon Buildups - 4 Pack by Becki Rodriguez

Great product that does a good job of removing limescale and limescale deposits on porcelain without scratching the shine or colour. With careful use, it will also remove deposits on stainless steel sink drains. It works on porcelain sinks and toilet bowls to remove stains and debris. I used sticks on the underside of the fiberglass shower to help remove stubborn stains. Although removing them works most of the time, know that with fiberglass it's almost impossible to completely restore them to brand new condition. This is a really good alternative. It works by lightly scratching the layer, so use it all over for a smooth finished product. I never use it on walls. Simply structured shower tray (shower floor). They can be stored in the shower and heat/humidity will not affect the use or shelf life of the product.