Amazon.com: GeoSafari Omega Refractor Telescope, Telescope for Kids & Adults, Supports STEM Learning, Gift For Boys & Girls, Ages 8+ : Toys & Games
Sky-Watcher Esprit ED APO 150mm f/7 Refractor Telescope S11430
Types of telescope: Refractor, reflector, Newtonian or Dobsonian? | T3
Refracting telescope - Wikipedia
Amazon.com : Telescopes for Adults, 70mm Aperture and 700mm Focal Length Professional Astronomy Refractor Telescope for Kids and Beginners - with EQ Mount, 2 Plossl Eyepieces and Smartphone Adapter : Electronics
National Geographic SKY VIEW 70 - 70mm Refractor Telescope with Panhan — Explore Scientific