1. Lens adopts BAK4 prism type, which makes the lens more transparent, clear, and bright.
2. The wrist type anti-skid rope design will be easier to carry and prevent to fall off when holding.
3. With the pocket design, this will help you probably to take and single-hand operation.
4. The focus capability makes the image clear and sharp.
Objective Lens Diameter:Approx 42mm
Eye Lens Diameter: Approx 17mm