Amazon.com: Standard 10" Angle-Attach Speaker Foam Surround Repair Kit - 2 Speaker Kit - Fits Several Dozen Different Commonly Used 10" Speakers of Different Brands and Models Whose Foams Match The Measurements :
Speaker Surround Re-Foam Repair Kit For 10" Speaker
8" Type 2 Angled Attach Speaker Repair Kit for Replacing Foam Surrounds on Speakers with a 6-1/4" Speaker Cone.