ASToptics BARLOW 2X (DOUBLEUR) + FILETAGE T2

Astromania 2 ED 2x dual power Telescope Barlow Lens for Telescopes

2 Inch ED 2x Barlow Lens for Astronomic Telescope + 2 to 1.25 Adapter

Like other 2x lenses, this big 2 model provides a 2-time power-boost to any 2 eyepiece so you can enjoy double the magnification of any 2 ocular. Just insert into a telescope's 2 focuser and then insert any 2 eyepiece into the Barlow to double the power of the eyepiece.

Orion 8762 2-Inch 2x Barlow Lens

This 2 2x Clamp Ring Big Barlow can be used with any telescope using a 2 focuser. As it is only 4.5 long, it can also be used in most 2 star

Tele Vue 2X Big Barlow for 2 eyepieces, with 1.25 eyepiece adapter

Astromania 1.25 Latest 2X Barlow Lens MultiCoated Metal with M42x0.75 Thread Camera Interface for Telescopes : Electronics

2X Barlow Lens, Aisnyho Metal Barlow Telescope Lens Fully Multi-Coated with M42x0.75 Thread Interface for Standard 1.25 Astronomy Scope Eyepiece : Electronics

TS-Optics TSB2T Barlow Lens 2x - 1.25 with integrated T2 thread - photo adapter for Newton

Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece : Electronics

If you are looking for quality-look here. This 2X Barlow has an achromatic multicoated ED (Extra low dispersion glass) lens. You can unscrew the lens

2 Inch ED 2x Barlow Lens for Astronomic Telescope + 2 to 1.25 Adapter

Astro-Tech 2X Telecentric Extender Barlow for 1.25 eyepieces

Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece : Electronics