Glass ND filter for GoPro Hero 5/6/7 – Camera Butter
Telesin Cpl Nd 4 8 16 Filter Set For Gopro Hero 7 6 5 Hero7 Hero6 Hero5 Filtre Kit Filtro Polarizing Filter For Go Pro Camera - Camera Filters - AliExpress
Freewell ND64 Filter for GoPro HERO10/HERO9 Black FW-H9B-ND64
FOTOFLY Go Pro 5 6 7 Aluminum Filter ND 4 8 16 Neutral Density Filters Kit For GoPro Hero 5/6/7 Black Action Camera Accessory|Sports Camcorder Cases| - AliExpress