Ulanzi G9-4 Plastic Camera Cage for GoPro HERO9 BlackKey Features Expand Your GoPro for Vlogging Streaming 52mm Filter Adapter; Two Shoe Mounts Space for Mic Adapter 2 Prong Mount; Lens Cover Ulanzi G9 4 Overview In a simple, plastic design, the Ulanzi G9 4 Plastic Cage allows you to expand your HERO9 with accessories such as lights, mics, and ND filters for vlogging, livestreaming, and most other applications. It features two shoe mounts on top and comes with a 52mm threaded filter adapter. On the