Audio Active Speakers 3/4/5/6.5/8/10 Inch Speaker Foam Surround Foam Edge Sponge
12" Large Roll Angled Speaker Repair Kit For Replacing Foam Surrounds.
Amazon.com: Standard 12" Speaker Foam Surround Edge Repair Kit - 2 Speaker Kit - Fits 12" Speakers with a 3/4" Roll and The Measurements Listed : Electronics