[Package Includes] 1 x 0.24inch (6mm) roller, 1 x 0.79inch (20mm) roller and 1 x 1.57inch (40mm) roller. 3 sizes of rollers meet different 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] Sound deadening roller features a raised design to enhance adhesion. Its profile improves handling and prevents slippage. The roller moves smoothly across surfaces, effectively pressing sound deadening material onto vehicle panels. [Thicken & Solid Metal Roller] Made with high-quality metal wheel, riveted steel roller supports and built-in steel bearings for smooth and quiet operation. The thickened solid metal construction ensures full and tight contact between surfaces, improving adhesion of sound deadening materials, tire and tube patches. More effective than plastic, wooden or polyurethane rollers. [Fastening Connection & Ergonomic Handle] Features a compact structure with secure connections. The short ergonomic handle allows for easy operation and access to hard-to-reach areas. Ideal tool for installing soundproofing and sound deadening materials in vehicles. [Multipurpose Use] Suitable for all types of soundproofing mats, acoustic insulation and damping materials. Also ideal for vehicle insulation installation, carpet rolling, seam rolling, wallpaper application, tape application and adhesive bonding. Note: Slight color variations 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 Roller Note: Only the items listed above are included. Light reflection and display differences may cause slight color variation. Measurement error allowed is +/- 1-3cm.