Features: Rubber give the tape a certain resistance, so that is in close contact with the tape to prevent the size from being different. Easy to install and convenient to use, diameter approx 13mm/0.59in; Made of quality material, long service life and durability. Suitable for both men and women, this cassette tape pinch roller is designed for individuals who own a cassette recorder or player. Perfect for recording, professional use, or simply enjoy your favorite tapes, this cassette tape pinch roller is an essential accessory. Specifications: Material:Rubber Color:Black Roller Size:Approx.13x8x2mm/0.59x3.15x0.79in Package Includes: 1xCartridge Radio Roller note: Please allow 1-2cm errors due to manual measurement,please 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.