The Detail Guardz Dirt Lock traps contamination at the bottom of your wash bucket, keeping your mitt clean and protecting your paint from swirls and scratches. Its patented jet turbine design forces dirt through Venturi funnels while fresh water circulates back to the top. The sealed edge prevents particles from escaping, and retractable grips make it easy to insert and remove. Fits most 5-gallon and 3.5-gallon buckets for safer, more effective washing.