AccStation Pumice is a unique substance that can be used for tough cleaning jobs. Hard water rings on toilets and bathtubs, rust on grills and other tough stains do not stand a chance against a pumice cleaning stone. It's easy to use. Just clean and wet the surface and then unwrap your pumice and scrub away. These are not reusable because they do wear away. Each stick is individually wrapped so they are clean when you open them. Each of the 12 pumice sticks measures 5.9 x 1.4 x 0.9 inches. 12-Pack Pumice Stones for Cleaning - Toilet Bowl Cleaner (Gray) Versatile Applications: Pumice sticks have a wide range of uses, including cleaning tiles in bathrooms and kitchens, removing hard water rings, cleaning rust from grills, and eliminating lime, calcium, and rust build-up from pool tiles or spas Stiff and Rigid: The scouring bars can be used harshly on hard surfaces since they are so stiff. They are an effective tool for scrubbing and scouring various surfaces Individually Packed: Each pumice scourer is hygienically and individually packed so you can use it worry free High-Quality Material: Crafted from a premium material, these pumice sticks are odorless, nontoxic, and resistant to absorbing grease and grime. They are safe for use around people, animals, plants, and water sources What’s Included: You will get 12 pieces of these pumice stones where each stick measures 5.9 x 1.4 x 0.9 inches