Explore Scientific FirstLight AR102mm Tube Refractor with Twi Nano White. f/6.4 Refractor with Flint and Optical Crown Air-Spaced Doublet; Fully Multi-Coated Optics; Metal Tube; Classic White Finish; Single-Speed 1.25-inch R&P Focuser; TwiLight Nano Alt-azimuth Mount on Folding Metal Tripod with Accessory Tray; Red Dot Finder; 25mm 1.25-inch O.D. Plossl Eyepiece; Smartphone Camera Adapter Specifications for Explore Scientific FirstLight Tube Refractor AR102mm: Manufacturer: Explore Scientific Color: White Objective Lens Diameter: 102 mm Objective Aperture: 102 mm Condition: New Magnification Type: Fixed Package Contents: Explore Scientific FirstLight Tube Refractor AR102mm 102mm Dia. f/6.4 Refractor with Flint and Optical Crown Air-Spaced Doublet; Fully Multi-Coated Optics; Metal Tube; Classic White Finish; Single-Speed 1.25-inch RP Focuser; TwiLight Nano Alt-azimuth Mount on Folding Metal Tripod with Accessory Tray; Red Dot Finder; 25mm 1.25-inch O.D. Plossl Eyepiece; Smartphone Camera Adapter