The package includes 20 press wheels with frames that are designed for durability and stability during recording. The wheels are black cassette deck pinch rollers made of rubber and plastic material. They have a diameter of 10mm and are suitable for recorders, car recorders, personal stereos, radios, and audio devices. The pinch rollers are lightweight and compact for easy portability. They provide resistance to the tape to ensure the magnetic head and tape stay close together and prevent signal loss. Overall, these pinch rollers are high-quality, wear-resistant, and perfect for audio cassette machine repair and maintenance.