This is the back plate of a Diff case for the iPhone 4/4S. This plate clips onto the front plate to form a complete case. The is the part of the case that accepts a Diff lens (adapter required CSDCLAM).
• Attach to tripod, mount lenses, protect your screen
• Easily clips to backpack, camera bag, purse, etc
• Front Screen Visor Folds down to protect screen and fully enclose iPhone
• Add a Carabiner Clip to Through-Hole