[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 sections and the smaller ones for tight corners such as curves, center console, and pillar areas. [Raised Design] The sound deadening roller features a raised surface design to enhance adhesion. Its textured profile improves handling and prevents slippage during use. The roller smoothly glides over surfaces, effectively pressing 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 metal design ensures full and tight contact between surfaces, improving bonding performance. Compared to plastic, wood, or polyurethane rollers, the metal roller provides superior effectiveness for sound deadening and repair applications. [Secure Connection & Ergonomic Handle] This roller tool features a compact structure with a secure connection. The short, ergonomically designed handle allows for easy handling and access to hard-to-reach areas of the vehicle. Ideal for installing soundproofing and sound deadening materials in automotive applications. [Multipurpose Use] Suitable for all types of soundproofing mats, o insulation, and damping materials. Also ideal for applying car insulation throughout the vehicle. Can be used as a carpet roller, seam roller, wallpaper roller, tape roller, or adhesive roller. Color: Black Material: Plastic + Metal Size: 6/20/40mm Package Contents: 3 x Sound Deadening Rollers Note: The package includes only the items listed above. Light reflection and display differences may cause slight color variations. Measurement error is +/- 1-3cm.