Kit includes:

• Viewfinder with 3x Focusable Magnification
• 40mm Diameter Anti-fog Lens
• 2 Sizes of Body Frames
• Neck Strap

Features:

• The diopter allows you to dial in the focus to match your eye.
  
• The Proaim Viewfinder has a diopter range is of -2.75 and up
  (unlimited with extender frames).
  
• The viewfinder can be attached to the LCD screen by a small
  frame with strong glue on one side.
  
• The lens of this viewfinder is anti-fog coated.