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.