4PCS Speaker Foam Enhancer,6.5" Speaker Foam Rings for Enhancing Stereo Sound in Car Speakers,Universal Self-Adhesive Speaker Gasket Car Accessories for Car,Truck,SUVNotes to Buyers Package includes 4 pieces 6. 5 speaker rings, size is 7. 67x7. 67x0. 95 inches, inner diameter is 5. 53 inches, plenty of them, fully meet your daily use needs, fit for 6 inch 7 inch door speakers! Please confirm and check your required size and speaker compatibility before purchase to avoid unavailability after purchase! Excellent Performance Our speaker foam is more than just a simple car accessories, it's the key to upgrading your