HoodEYE eyecups link your eye to the camera by comfortably sealing out ambient light. You can easily upgrade your camera eyepiece in just a few seconds. The self-locking mount keeps HoodEYE on your camera. Regular and Glasses HoodEYE eyecups rotate to accommodate right or left eyed shooters. The New Flat bottom eyecup shape clears your LCD screen. Eyecups are made of hypoallergenic silicon rubber for comfort.