This Eurow Microfiber tube sponge is safe to use on all surfaces around the home, car, RV, motorcycle, aircraft, or boat. It is ideal for washing, in particular for areas of the vehicle that are hard to reach, like the hood and roof of SUV's. The inner tube sponge is very sturdy and will allow force to be applied when you want to remove a far away spot. The exterior is made of 3 different microfiber materials, terry weave and scrubbing material. Great for removing dead bugs. In addition, this microfiber sponge is especially adept at cleaning without the use of chemicals. Use it dry, and it will dust like magic without scratching, linting, or streaking. Use it wet and it will absorb multiple times its own weight in water. Microfiber works by attracting dust and other contaminants like a magnet and trapping them within its very fine microscopic filaments. This microfiber will not scratch any surface but it can pick up particles that will scratch, please make sure to rinse frequently. The fibers are so tiny they are able to remove 99% of bacteria effortlessly. Due to its superior quality, this microfiber sponge can be washed and reused hundreds of times. Care instructions: Machine wash. Tumble dry low, and do not iron. Do not use fabric softener as this would clog the microfibers and reduce performance. Do not use chlorine bleach. Wash with other non linting materials to maintain proper dirt-gripping properties.