Square ND Filter Set with Holder

Only the 82mm ring has been opened.

Excerpt from the website where it was purchased:

[Package Contents]
4 x Square ND Filters (ND2, ND4, ND8, ND16), 4 x Square Graduated ND Filters (G.ND2, G.ND4, G.ND8, G.ND16), 9 x Metal Adapters, 2 x Holders (General Filter Holder + Wide-Angle Dedicated Filter Holder), 1 x Lens Hood, 1 x Filter Case. Filter Material: Resin. Filter Size: 94mm x 83mm.

[8-Piece ND Filter Set]
ND filters allow you to open the aperture or slow down the shutter speed during shooting. Since square filters are used by inserting them into a holder, you can adjust the part of the photo that is affected by changing the insertion position and orientation of the filter.

[Includes 9 Adapter Rings]
With the included 9 metal adapter rings, you can use the same filters on all your lenses by switching the adapter rings. Compatible with 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, and 82mm lenses. Adapter rings are attached to the front threads of the lens, similar to circular filters.

[Includes 2 Filter Holders]
Two filter holders are also provided, which are necessary for setting up square filters. General Filter Holder: Can simultaneously mount multiple square filters (up to 3 supported). Wide-Angle Dedicated Filter Holder: Can mount only one square filter. Suitable for wide-angle lenses with a diameter of 17mm or less.

[Includes Filter Case and Lens Hood]
The filter case is convenient for preparing filters for replacement by inserting square filters into the case when using the filter holder. Using a lens hood offers benefits such as protecting the lens from rain and dust, and preventing fingerprints.