Features:
Make of High-strength Aluminum,Lightweight and durable 
Adopt Locking Ring,quickly to install without remove the lens,very stable but without hurt your lens.
Support 3pcs 150mm square filters at the same time
Support 2pcs 150mm square filters + 1pcs 145mm round filter at the same time
The Light block board design solved the light leaking problems.
The holder's light block board can be removed when you only want to use a 145mm CPL, it will be more convenient at this time.
Without vignette 
Can be rotated 360°
Only need to change adapter (Wyatt brand 150 series adapter) for different lens, no need to change holder.

Specification:
Model:150mm square filter holder
Materials: T6 High-strength Aluminum
Weight:220g
Fit for :150mm x 170mm square filter/150mm x 150mm square filter/145mm round filter
Compatible Brand:Haida/LEE/HITECH/Nisi and other brand with 150mm series square filters

Suitable for lens(for optional):
Nikon 14-24mm f/2.8G ED

Package:
150mm square filter holder with adapter for Nikon 14-24mm x1