This Filter Set from PGYTECH includes a CPL filter, ND8 filter, and an ND16 filter designed for use with DJI's Pocket OSMO gimbals. Each of them has a multilayer hardened waterproof coating and German SCHOTT optical glass.
 
Product Features:
Engineered precisely for the OSMO Pocket
Small size and light weight, easy to carry.
Made with high grade
multi-coated optical glass.

Air Frame construction: lightweight design for smooth gimbal operation.
Special edition anodized aluminum frame.
Quick release: install right away, fast and convenient!