This sound deadening roller is good for use in a variety of soundproofing applications, including automotive car audio, home theater, and recording studio projects. Its versatile design makes it suitable for use on a variety of surfaces, including heat mats and wallpaper. Specification: Handle Color: Black Material: PU, Plastics, Metal Roller Width: 5cm / 2" Roller Dia.: 3.5cm / 1.4" Handle Length: 12.5cm / 4.9" Packing List: 1 x Sound Deadening Roller Advantage : The non-slip handle of this Sound Deadening Roller provides a comfortable grip, allowing for precise and controlled application of sound deadening materials. Its durable construction ensures long-lasting use, making it a reliable tool for any soundproofing project. Instruction: To use this sound deadening roller, simply apply pressure to the roller and roll it over the sound deadening material. Use a back-and-forth motion to ensure even coverage and maximum effectiveness. Clean the roller after each use to prevent buildup of debris. NOTE: When using this Sound Deadening Roller, be sure to wear protective gloves and eye gear to prevent accident. Use caution when handling object tips or heavy objects. Handle Color: Black; Material: PU, Plastics, Metal; Roller Width: 5cm / 2"; Roller Dia.: 3.5cm / 1.4"; Handle Length: 12.5cm / 4.9"; Packing List: 1 x Sound Deadening Roller Advantage: The non-slip handle of this Sound Deadening Roller provides a comfortable grip, allowing for precise and controlled application of sound deadening materials. Its durable construction ensures long-lasting use, making it a reliable tool for any soundproofing project. Instruction:To use this sound deadening roller, simply apply pressure to the roller and roll it over the sound deadening material. Use a back-and-forth motion to ensure even coverage and maximum effectiveness. Clean the roller after each use to prevent buildup of debris. Application: This sound deadening roller is good for use in a variety of soundproofing applications, including automotive car audio, home theater, and recording studio projects. Its versatile design makes it suitable for use on a variety of surfaces, including heat mats and wallpaper. NOTE: When using this Sound Deadening Roller, be sure to wear protective gloves and eye gear to prevent accident. Use caution when handling object tips or heavy objects.