[Package Includes] 1 x 0.24inch (6mm) roller, 1 x 0.79inch (20mm) roller, and 1 x 1.57inch (40mm) roller. Three sizes of rollers meet different application needs. Use the larger roller for longer flat surfaces and the smaller rollers for tight corners such as curves, center consoles, and pillar areas. [Raised Corrugated Design] The sound deadening roller features a raised corrugated design to enhance adhesion. The textured profile improves grip and handling, preventing slippage during use. The roller smoothly glides over surfaces and firmly presses sound deadening material onto vehicle panels. [Thickened & Solid Metal Roller] Constructed with a high-quality metal wheel, riveted steel roller supports, and built-in steel bearings for smooth and quiet operation. The thickened solid design ensures full and tight contact with surfaces, improving bonding efficiency. Ideal for applying sound deadening materials, tire patches, and tube repairs. More effective than plastic, wooden, or polyurethane rollers. [Secure Connection & Ergonomic Handle] Features a compact structure with a secure connection. The short, ergonomic handle allows for easy handling and access to hard-to-reach areas of the vehicle. A practical tool for installing soundproofing and sound deadening materials in automotive applications. [Multipurpose Use] Suitable for all types of soundproofing mats, audio insulation, and damping materials. Ideal for applying car insulation throughout the vehicle. Can also be used as a carpet roller, seam roller, wallpaper roller, tape roller, or adhesive roller. Note: Slight variations in color may occur due to lighting and display differences. This does not affect functionality. Color: Black Material: Plastic + Metal Size: 6/20/40mm Package Contents: 3 x Sound Deadening Rollers Only the items listed are included. Note: Light reflection and display settings may cause slight color differences between the image and the actual item. Measurement error is +/- 1-3cm.