Binoculars & Telescopes
Telescope 1.25" 2x 3x Barlow Lens Multi Coated Metal M42x0.75 Thread Astronomy Monocular Binoculars Telescope(Barlow eyepiece 2x)
It not only increases the magnification, but also makes the clearer. Optical components, physical calculation. The resolution is up to 15 times higher than that of ordinary magnifying lenses. High-quality magnifying lens. It can adjust eyepiece...
https://www.bizrate.co.uk/binoculars_telescopes/telescope-1-25-2x-3x-barlow-oid40261901176.html