Magnification: 4( fixed) Objective Lens: 32MM Coating: Blue Feild Of View: 10° Resolution: 13 Finish: Black matte Waterproof: Yes Nitrogen: Full filled Nitrogen Tube diameter: 25.4mm Length: 20cm Click Value: 0.25 PARALLAX: + 0.22 SD~ -0.22 SD Reticle: Glass-etched Five lines