Zomei Adjustable Neutral density filter/ND filter from ND2 to ND400 (72mm) | Eachshot.com
72mm Variable ND2-32 Filter with Cap, Adjustable Neutral Density ND Filter Kit - KENTFAITH
Zomei 72mm Fader Variable Nd Filter Adjustable Nd2 To Nd400 Nd2-400 Neutral Density For Canon Nikon Hoya Sony Camera Lens 72mm - Camera Filters - AliExpress