Amazon.com : K&F Concept 77mm Variable Fader ND2-ND32 ND Filter and CPL Circular Polarizing Filter 2 in 1 for Camera Lens No X Spot Waterproof Scratch Resistant (Nano-X Series) : Electronics
Dodd Camera - ProMaster 46mm Variable ND Filter
Ultimaxx 55mm ND2 to ND400 Slim Fader Variable Adjustable ND Neutral Density Filter for All DSLR Camera Lens with Same Filter Thread Size - Walmart.com
Amazon.com : JJC 40.5mm ND Filter ND2-2000 VND Variable Neutral Density Adjustable Fader for Sony ZV-1F ZV1F A6000 A6100 A6300 A6400 A5100 ZV-E1 ZV-E10 ZVE10 A7C with E PZ 16-50mm Kit Lens
Emolux Digital SLIM HD Variable Fader ND 2-400 Filter for wide angle l – altasfoto
FOTGA Ultra Slim HD Fader Variable Adjustable ND2 to ND400 Neutral Density ND Filter with Stops 55mm – FOTGA Official WebSite
Amazon.com : JJC 82mm Variable Neutral Density Filter ND2 to ND400, Slim Fader ND Filter for Canon EF 24-70mm f/2.8, EF 16-35mm f/2.8, Sony FE 16-35mm f/2.8, Nikon 24-70mm f/2.8 & More
Fotga 52mm Slim Fader Variable Nd Filter Adjustable Neutral Density Nd2 To Nd400 - Camera Filters - AliExpress