Haida 77-82mm NanoPro Magnetic Step Up Ring HD46697782
Haida NanoPro Magnetic Step Up Rings come in three different sizes; 62-67mm, 72-77mm and (this one) 77-82mm
The magnetic step-up adapter ring is screwed onto the filter thread of the compatible lens, allowing you to magnetically connect the magnetic filter to it.
This magnetic step-up ring enables you to use magnetic filters on multiple lenses.
For example, purchase a 77-82mm magnetic step-up ring and 82mm magnetic filter, which can be used with both 82mm lens and 77mm lens.