General description Pumice stone toilet bowl cleaner is designed to effectively remove hard water rings, calcium buildup, and rust from toilets, sinks, bathroom tiles, and other ceramic surfaces. Made from 100% pumice stone, this chemical-free and non-toxic cleaning tool is safe for pets, people, and plants. It can also be used to clean grills, ovens, and pool tiles, making it a versatile addition to your cleaning supplies. Technical specifications Dimensions: 5.9 x 1.4 x 0.9 inches Color: Gray Material: Foam glass Package Contents: 24 Cleaning Tools Measurement allowed error: +/- 1-3 cm Usage Wet the pumice stone before use for optimal cleaning. Rub gently and slowly to avoid damage to surfaces. Can be sharpened into different shapes for cleaning narrow edges and corners. Also suitable for removing dead skin safely.