RECOIL SPB65K 4 Pack Foldable Silicone 6.5” Car Speaker Baffle Kits, for Sound Quality Improvement and Speaker Protection, Four Pieces

Eh, I can't really say for sure, but get at least some decent quality materials. Get some of these silicone baffles > https://a.co/d/018iCuL1 Some of these foam rings > https://a.co/d/0d0SeRm9 Then some decent matting. There's so many brands of it, I can't really say specifically which lol.