FEIRSH 8x20 Monocular Corner Telescope Outdoor Low Light Night Vision Portable Telescope(Metal Optical Blue Film)

1. Material: metal
2. Objective lens diameter: 21 mm (24 mm)
3. Eyepiece diameter: 12 mm (19 mm)
4. Coating: Multi-layer broadband blue film red film coating
5. Prism: BAK9 optical prism eyepiece objective lens
6. Lightweight and strong, smooth rotation
7. All metal shell, good hand feeling
8. Dimensions: 73x48x35 mm
9. Weight: about 35 grams