This listing is for 2 foams (1 pair), and BCA3035 glue. Foam dimensions: These foams fit the FLAT ATTACH 12" Cerwin woofers. Red foams for the flat attach woofers have been unavailable for decades, but no longer. While the ID of these foams is slightly angled, it is less angled than most angle attach foams, and the ID is correct to fit the flat attach woofers. The OD of the inner lip is a hair large, but these will work just fine as you can see in the pictures. The only other option would be the gray flat attach foams. These will NOT fit any angle attach Cerwin woofers that I am aware of, as the ID of these is larger than the ID of the angle attach foams. These are the same foam and thickness as my other Brew City foams. Cerwin used red over gray. These are red over gray. Not paper thin like the red ones they sell from China. Not pink over gray like many sellers have. But correct thickness, RED, over gray. Includes tips and tricks learned from decades of doing this myself. If you have any questions, don’t hesitate to reach out. Will be packed securely and shipped promptly. Thanks!