Rapid Viewfinder Eyepiece Cup EyeCup for Sony a58 a65 a77 a7 a7r Eye piece cup The soft touch eyepiece cup helps to protect your viewfinder from dust, moisture, and scratches. More Comfortable Viewing with Glasses The design also helps to block out unwanted light, providing more detail while looking through the viewfinder for each eye cup piece, we give a storage box free, which can serve as SD card box or AA/AAA battery box