Bang & Olufsen 3-1/2 Inch Foam Speaker Repair Kit, FSK-3 (Pair)

I used these to repair damage from old age and some unknown toddler (likely one of mine) pushing in the dust cap. The only challenge with this kit is that the surrounds were a little too small (maybe a quarter inch) to fit the surrounds behind the cone, which is how they originally were. I would say these are compatible to fix Bang & Olufsen Beolab 6000 midrange drivers, but for a perfect fit, I would look elsewhere. However, for fixing 30 year old speakers, these worked just fine.