The dual head feature provides flexibility, making it suitable for different rolling needs in sound deadening applications. This roller effectively reduces vehicle noise, enhancing the overall driving experience by providing a quieter environment Features -Color:Black -Material:PC -Size:18.00X5.00X2.70 cm/7.07X1.97X1.06in -Adaptable dualhead design: the dualhead feature provides flexibility, making it suitable for different rolling needs in sound deadening applications -Noise reduction: this roller effectively reduces vehicle noise, enhancing the overall driving experience by providing a quieter environment -Robust and durable: made from PC materials, this roller is built to withstand extensive use, ensuring longterm reliability -Easy installation: the roller is designed for ease of use, making the installation and removal of sound deadening materials simple and efficient -Versatile usage: beyond automotive applications, this roller is ideal for various soundproofing tasks, offering great versatility in its use Package list: 2 x sound deadening rollers