1. Portable and compact.

2. Holds plug-in filters and round filters at the same time.

3. Compatible with CPL, ND filter, etc, easy assembly and disassembly.

4. Supports multiple 4 x 5.65" and 4 x 4" filters.

5. Fits various lenses (52/55/58/62/67/72/77/82/86mm).

6. Comes with 4 adapter rings (67/72/77/82mm), meet users' common shooting needs.

7. Features 1/4"-20 threaded holes for additional accessories on the top and anti-twist design on the bottom.