The WHAMVOX 4pcs Tape Recorder Pressure Roller is a set of pinch rollers designed for video machines, recorders, and other household appliances. These rollers provide resistance to the tape, ensuring a close connection between the magnetic head and the tape to prevent signal loss. They can be used in various audio devices and are suitable for cassette decks, car recorders, personal stereos, radios, and more. The rollers are designed to prevent distortion or shaking in audio recordings and provide a convenient recording experience. Made in China, this product is lightweight and compact, measuring 2 x 1.2 x 1.2 cm and weighing 6 grams.