Product -Dimensions: 14 x 4.5 cm -Instrument magnification: 3-6 times -Exit pupil distance: 5mm -Exit pupil diameter: 10mm -Field of view: 148m \/ 1000m -Material: ABS, glass, rubber Packaging includes 1 x fishing magnifier 1 x glasses case 1.High Quality: This Telescope magnifying glass is made of high-quality acrylic glass lens, The lens is wear-resistant and scratch-resistant, and high-definition. 2.Unique Glasses Design: Binoculars focus, focus is flexible, you can easily focus on the glasses, do not have to use the new design to help the best view of fishing, hands-free, you do not need to use your hands, you can wear glasses fishing. 3.Hand-Free Glasses \u0026 Adjustable: Adjustable fishing telescope, according to the different visual to adjust the focus. Professional Hands-Free Glasses. 4.Wide Application: A great fishing accessory for fishermen, also for watching TV, Viewing Opera Concerts Theater Shows, games and distant signs, you can easily watch without hands. 5.ApplicationFit for all adults, even shortsightedness with the Teleconverter.