The Keyhole Hands Free Camera Harness (Black) offers you a way to hike, bike, ski or snowshoe while holding your camera safe and steady, solidly against your body. The harness is unique in design since it provides a way to prevent what usually happens to cameras when attached to typical backpack or chest harness straps. Traditional harnesses dont eliminate "swing" so you find yourself trying to both hold your camera steady while trying to use trekking poles. Or, if youre scrambling up a hill, your camera bounces any which way while youre trying to grab a rock to make it to the next ledge. The Keyhole is designed to hold your camera and lens firmly attached to your backpack or chest harness, with the lens facing downward and held steady with no swing. The design includes a special cap keeper attached to the Keyhole that prevents your lens from swaying from side to side. Yet, when youre ready to shoot, theres no complicated hardware to unhook or adjust to get your camera into shooting position. Perhaps one of the best features of this system is its ability to limit the strain of your camera on your neck. In addition, with your lens held tightly against your body, theres less chance of it banging into a rock, bush or the ground. The Keyhole attaches quickly and efficiently and is made from durable polypropylene straps and a hard plastic plate into which your camera slides. Screw the included Keyhole knob into the cameras 1/4 - 20 tripod socket. This knob then slides neatly into the slot of the hard plastic Keyhole plate. Use the included quick attach sternum strap adjusters that attach the Keyhole harness to your backpack or chest harness straps. The buckles come with four male connectors that mesh with the female connectors found on your backpacks straps. Adjust the straps so the fit is tight and comfortable. Finally, hook up the touch fastened cap keeper to your existing lens cap.