[THICKENED SOLID METAL ROLLER] Made with high-quality metal wheels, riveted steel roller brackets, and built-in steel bearings for smooth and quiet rolling performance. The reinforced, durable design ensures consistent pressure across all contact surfaces, improving adhesion when applying tires and tube patches during maintenance. Metal rollers offer superior performance compared to plastic, wood, or polyurethane alternatives.[2 ROLLERS FOR DIFFERENT APPLICATIONS] This car roller set includes two sizes to meet various needs. Ideal for installing automotive soundproofing and insulation materials. The wide roller is suitable for large, flat surfaces, while the narrow roller is designed for tight spaces and corners. Having both rollers ensures complete coverage during vehicle insulation installation.[TEXTURED HANDLE DESIGN] Features a raised, textured handle for improved grip and control. The ergonomic design allows for comfortable handling and helps prevent slippage during use. The rollers glide smoothly over surfaces, effectively pressing insulation material onto vehicle panels.[MULTI-FUNCTIONAL USE] This roller is designed for use with all types of sound-dampening and vibration-control materials. Perfect for automotive insulation projects. Also suitable for use as a carpet roller, seam roller, wallpaper roller, tape roller, or general-purpose adhesive roller.Color: Black + Silver Material: Metal + Plastic Size: 6mm / 40mm Package Contents: 2 x Auto Wheel Rollers Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.