About the product A of functions: pumice sticks can be applied to clean tile, to clean bathroom and kitchen, remove hard water rings, clean rust from grills; Besides, use them to clean and scour away , calcium and rust build up from the pool tile or on the spa Material: these pumice sticks are made of good material that is odorless and , do not absorb the grease and gunk, safe for people, animals, plants and water; It 't scratch your ceramic tile and metal; Easily solve your stains and troubles Apply to: we have prepared a large number of cleaning sticks , you can better clean your pool, kitchen, barbecue, and even the toilet; Don't worry, the cleaning sticks have enough quantity; Let your life be in a clean place Don't clog like the brushes, these pumice sticks can be applied to clean tile, to clean bathroom and kitchen, remove hard water rings, clean rust from grills; Besides, use them to clean and scour away , calcium and rust build up from the pool tile or on the spa. Toilet Cleaning Stone Toilet cleaning stones are made of ecological material that is odorless and do not absorb the grease and gunk and safe for people, animals, plants and water. It 't scratch your ceramic tile and metal, cleans the toilet much easier and more thoroughly than a brush, you can easily wipe off the dirt and rinse them with clean water. : Material: foam glass Color: grey Size: 5.9 x 1.4 x 0.9 inches/ 15 x 3.5 x 2.5 cm Quantity: 12 pieces Package Contents: 12 * cleaning strips Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.