Telescope, Mini Outdoor Concert Ball Game, Portable, Foldable, Pocket, 8 x 21 Inches, with FMC Coating

The BAK4 high refractive index prism has bright, clear images and sharp contrast that gives you all the details of the object. Full Multi-Coated (FMC): Multi-lenses completely coated with anti-glare green film for excellent light transmission and brightness while improving contrast and resolution. Best Gift Choice: Ideal for hunting, hiking, hiking, bird watching, sailing, concerts, outdoor sports, etc. Ideal gift for Father's Day and Children's Day. It is your best gift choice. ADJUSTABLE EYE WIDTH & DUAL FOCUS - The variety of eye widths make them suitable for both uses. Easily use the center focus wheel and diopter adjustment ring to focus your targets. In addition, the binoculars can be folded with the rubber eyepieces to suit eyewear wearers. High transmission optical lens can improve light transmittance and reduce light reflection,