Difficult to do without this accessory when you want to film underwater with his GoPro. After all, GoPro is delivered with waterproof case and it would be a shame not to try this feature. A floating handle allows the minimum of reassurance: if we lose the camera at the time of a failed dive, at-least it rise to the surface. Floating handles for GoPro, there are dozens of models on sale, more or less expensive or more or less sophisticated. This is the basic home basic. But after all, we ask for more? Grip! What for? It fits comfortably in your hand!