The non-slip design makes this sound insulation roller more attractive. Using reliable materials, it is safe, strong and provides long service. This audio sound insulation roller is easy to use and clean. Can adapt to different areas of the surface and improve smoothing efficiency. Features -Color:Black -Material:Wood, Plastic, Metal -Size(Bump type):18.00X4.00X3.00cm/7.07X1.57X1.18in -Size(Transparent):18.00X3.50X3.50cm/7.07X1.38X1.38in -This audio noise insulation tool is creative and suitable for installing various types of sound insulation materials, sound insulation materials, sound insulation wall panels, insulation. -Our none-slip noise roller is highly functional, with an ergonomically designed roller handle that is easy to hold and won't tear easily. Scrolling is very smooth. -When you need auto noise insulation tool, you can use it very simply, providing you with convenient and -Can easily solve annoying installation problems, our handheld sound insulation roller is simple in structure and very convenient to use, ensuring its practicability. -It's perfect for installing automotive insulation on an entire vehicle, our deadening tool is a gift that will make them happy. Package list: 1 x Bump Roller 1 x Smooth Roller