3-7x20 telescopic sight

Description:Telescope:
For recreational target shooting, plinking or small game hunting.
Fit .22 rifles or air guns.
They feature lenses calibrated for short ranges and coated optics for a bright image.
With Ready Fitted Mounts for standard 9-13mm grooved dovetail rails
Adjustable 3X ~ 7X Zoom Magnification
Objective lens diameter: 20mm 
Scope tube diameter: 18mm
Scope length: 290mm
Windage and elevation adjustment
Matt Black
Water proof & shock proof