Using this shelf is easy. First, make sure you've purchased the stainless steel set screws separately. Mount the mounting plates on the desired surface. Then, place the shelf into the receiving slots on the support arms and use the set screws to secure it. When using, you can place towels or other small items on the shelf. As for maintenance, simply wipe it with a soft cloth regularly to keep its satin finish looking good. Avoid using abrasive cleaners as they may scratch the stainless steel surface. Also, check the set screws periodically to ensure they're tight and the shelf is secure.