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 :
ACOUSTIC RESEARCH 8" REPLACEMENT SPEAKER FOAM SURROUNDS AR 4, 6, 7, 8 & more EUR 19,24 - PicClick IT
Amazon.com: 8" Speaker Foam Surround Repair Kit, 2Pcs 8inch Perforated Rubber Speaker Foam Edge Surround Rings Replacement Parts for Speaker Repair or DIY (Black) : Electronics
2pcs/set Foam Ring Rubber Speaker Loudspeaker Speaker Surround Repair | Fruugo IT
Foam or rubber surrounds? Change foam for rubber surrounds? - YouTube