60x21 BAK4 Zoom Monocular Binoculars with Wrist Strap Mini Portable Pocket Telescope Optics Scope for Outdoor Camping Hiking Hunting Feature: 1. This monocular offers 10x magnification and a 28mm objective diameter. 2. Fully coated optics to ensure excellent light transmission and brightness. 3. One-handed operation, compact and lightweight, with a wrist strap, easy to carry. 4. 4. Suitable for sporting events, concerts, bird watching, camping, fishing, golf and travel. Specification: Prism material: BAK4 Inner liner material: aluminum alloy Surface material: rubber Color: Black Type: 30 x 25 Magnification: about 7-10X Size: about 9 x 2.8 cm / 3.54x 1.1in Field of view: 1000m/7000m Objective coating: green film Eyepiece coating: blue film Violin angle: 5.5 Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 1 X Monocular Telescope