Music clip is made of stainless steel. Comes with 4pcs. Music page holder can help you to keep music notes. Holds your music book open flat, so your hands are free to play. Book clip also works on cookbooks, textbooks, magazines, and manuals open without having to hold the book by your hands Page holder flexible and strong page holders keep book wide open with paper clip while allowing for easy turning of the pages. Warranty: We Offer a Lifetime Warranty. If you have any problem, we will make things right for you.