The Sonus SFX-2 4" Spot Pad is perfect for polishing tight areas where more control over the pad is required. Used after buffing out a paint flaw with the SFX-1 4" Spot Pad to restore full gloss and blend the repair area. Use with Sonus Enhance (SFX-2) or other "swirl remover" machine polishes to achieve a high-gloss finish. When used in conjunction with the proper backing plate, the Sonus SFX-2 4" Spot Pad can be used with a dual-action polisher, rotary buffer or cordless drill. The Sonus SFX-2 4" Spot Pad is an excellent solution for maintaining clear plastic headlight lenses, too. Use with a light plastic polish and a cordless drill motor to keep plastic lenses crystal clear. Sonus