Fishing Telescope Glasses Binoculars Magnifier Magnification Glasses Specifications: Type:Portable Glasses Telescope Magnifier Color: Black Material: ABS Zoom: 300 ~ 400% Size: 15x4.5x15cm Weight: 55g Features: Provides 300%-400% zoomed-in view with turn of a dial. Simply move your head to follow the action up close. Compact and fit in pocket or purse. Easy on,easy off sunshade lens built-in. Includes lanyard and protective carrying case. No need for bulky binoculars or magnifying glasses. Great for bird watching,sporting events,concerts & more. Also great for reading,sewing,crafts,watching TV & more. Comfortable and convenient to carry. A great fishing accessory for fishermen. High quality optics for a comfortable observation. Lightweight, ergonomic design, it's easy to operate. Note: The portable glasses telescope magnifier are fairly straightforward to use; just put them on as you would a pair of sunglasses, and adjust the focus with the knobs positioned near the hinge of each temple (the rod-like component of eyeglasses & sunglasses that extend from the lenses to go over your ears). An inbuilt sun filter can be deployed if necessary; on the inside of the portable glasses telescope magnifier above the lens that goes to you right eye, there's a not-so-obvious slider. Slide it in toward the center of the product to bring brownish-colored filtered lenses (replacing the colorless lenses) into use; slide it the other way to bring the colorless lenses back. Package Included: 1x Portable Glasses Telescope Magnifier