The Beneath the Surface Pole Cam 42 In. is a 42 inches long underwater camera arm specifically made for GoPro cameras. The long arm pole allows you to shoot photos or videos while snorkeling or scuba diving. The pole is made up of three parts and can be broken down like a tent pole and folds down to 16 inches. A 1/4"-20 threaded hole is located on the end of the pole for attaching a camera mount. A rubber grip helps you keep hold of the arm while underwater.