Aluminum 2-axle Brushless Gimbal Camera Mount Controller Plug&play For Diy Quadcopter For Gopro 3 4 5 6 7 8/sjcam/osmo Action - Parts & Accs - AliExpress
Amazon.com : Steadicam Curve-BK Handheld Video Stabilizer and Grip for GoPro Hero Cameras 3, 4 Black & Hero 5 (Silver) : Professional Video Stabilizers : Electronics
How To Build a DIY Steadicam - Simple DIY Gimbal Design