PL10mm Eyepiece Astronomical Telescope Accessories High-definition High- definition Professional Stargazing 1.25 Inches/31.7mm - AliExpress Sports & Entertainment
Refractive Telescopes
Amazon.com : Monocular Telescope [12~16] x50 Wide View High Definition Zoom with Retractable Eyepiece and FMC BAK4 Prism Waterproof Fog Proof with Smartphone Holder & Mini Tripod Match for Hiking Birding and
23mm Spherical High-definition Eyepiece for Star Watching 1.25 Inch Telescope | eBay
Telescope eyepieces | How to use them and which are the best | BBC Sky at Night Magazine