Features: Easy to assemble, disassemble, and adjust to the perfect width, this music book clip is light weight and portable, convenient to carry around. Suitable for various music stands, providing smooth page turning without tearing the sheets. Great for musicians of all levels, this music accessory is a practical and long-lasting solution to keep your music sheets in place. The piano music book clip features smooth rolling ball bearings that prevent pages from getting damaged while turning. Whether you are using thin single sheets or heavy music books, this clip ensures easy page flipping, allowing you to focuses on your music. Specifications: Materials: Metal and Plastic Color: Black/White Length: about 11.5+4.8cm/4.53+1.89inch Package Includes: 1pair Piano Music Book Clip note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.