Celestron Omni 2x Barlow Lens (1.25") 93326 B&H Photo Video
Amazon.com : SVBONY 2X Barlow Lens, Doubles The Magnification Telescope Barlow Lenses, 1.25 inch Multi Coated Broadband Green Film Telescope Accessory with M42 Thread for Standard Telescope Eyepiece : Electronics
Tele Vue 1.25" 2x Barlow # BLW-2125
Carl Zeiss 1¼" Abbe Barlow lens 2x
Celestron 2X barlow lens1.25 inch M42 threaded astronomical telescope accessories _ - AliExpress Mobile
Meade Series 4000 1.25" 2x Short-Focus Barlow Lens
Celestron 2X Omni Barlow for 1.25" eyepieces | Astronomics.com
Amazon.com : NEEWER 2X Barlow Lens for Telescope Eyepiece, 1.25” Multi-Coated Metal Lens to Double Magnify Eyepieces with M42 Thread to Connect to DSLR or SLR Camera : Electronics
2X Barlow Lens For SM and SW Stereo Microscopes (48mm) – AmScope
Amazon.com : Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece : Electronics
Levenhuk 2x Barlow Lens – Buy from the Levenhuk official website in USA