Amazon.co.jp: Compatible with GoPro Accessories Parts, Waterproof, 3-Way Tripod, 3-Way Hero 11/10/9/8/7/6/5/4, Black Session Max, DJI osmo Action and Other Action Cameras, Hand Grip Stand : Electronics
Go Pro 3-Way 2.0
GoPro: How to Use 3-Way 2.0 (Tripod | Grip | Arm) - One of The Most Versatile GoPro Mounts - YouTube
Gopro Accessories | Gopro 3-way 2.0 | Gopro Arm | Tripod - Sports & Action Video Cameras Accessories - Aliexpress
Gopro 3-Way Grip Arm Tripod Mount Extention, AFAEM-001 – Design Info