Commodity introduction: 
1) This  is custom designed soft-touch Eyecup to provide Cushioning around the camera's eyepiece
2) It is especially useful to Eyeglass Wearers 
3) Block out unwanted light from your viewfinder
4) 100% compatible with Canon Eyecup EC-II
Comparible With:
EOS 1D Mark II N,
EOS 1N,
EOS 1N RS,
EOS 1V,
EOS-1D,
EOS-1D MARK II,
EOS-1Ds,
EOS-1Ds Mark II,

Package Includes:
1x EB Eyecup