This mini monocular telescope is made of , which can withstand use. Features plastic and metal material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: Green -Material: Metal and plastic -Size: 3.50X2.20X2.20cm/ 1.38X0.86X0.86inch -Can be used for outdoor and indoor activities such as fishing, bird watching, watching, etc. -With the compact pocket size, this mini monocular is easy to use by single hand. -Just the ring on the monocular onto your thumb, very easy to put on and remove. -The powerful handheld monocular available to get the best view for adults and kids in your outdoor adventures. -A practical and wonderful present for your friend and family and they will like it. Specification -Focusing method: Rotating focus. -Prism information: composite full optical lens. -Eyepiece diameter: About 8mm. -Objective lens diameter: About 17.5mm. -Magnification: 2.5X. -Field of view distance: 8m/600m. -Field of view angle: 6.5 degrees. -Exit pupil diameter: 16mm. -Exit pupil distance: 13.5mm. -Form: 3 pieces of 2-group objective lens. Package list: 1 x Telescope 1 x Storage Box