Astromania 2 Inch Telescope Eyepiece Extension Tube Adapter Optical Length 35Mm With Standand 2 Inch Filter Threads Signal Boosters 1 X Car Player

1 X Car Player

Highly-Efficient

Blue Or Pink

The Red Led Indicates Low Battery

And Ensure Quiet Operation During Work

Astromania 2 Inch Telescope Eyepiece Extension Tube Adapter Optical Length 35Mm With Standand 2 Inch Filter Threads Signal Boosters 1 X Car PlayerAstromania 2 Inch Telescope Eyepiece Extension Tube Adapter Provide Extra Focuser Back Travel Sometimes Needed To Achieve Focus With Certain Eyepiece Or Telescope Combinations. More Back Travel Is Often Needed For Short Range Terrestrial Viewing Or With Use Of A Field Flattener, Coma Corrector, Or Focal Reducer Lens. Extension Tube Provides Extra Focuser ''Back Travel'' Often Needed For Short Range Terrestrial Viewing Through A Telescope, Or For