Feature: 1. Horn eye mask, prevent oppression of the eyeball, the full line of sight light film clear no halo. 2. Enhance concentration, watch the insects, see the distant view, correct understanding of the world, help children grow. 3. Can share with friends, guide children to learn to share with others, form a good habit. Learn how to communicate with others while playing. 4. Increase knowledge, explore the principles of optics and cultivate children's scientific potential. 5. Wonderful gift for your kids. Specification: Item type: Children Binocular Telescope Material: rubber + metalOptional colors: orange, yellow, green Product model: 8X21 Magnification: 8 times Objective lens diameter: Approx. 21mm Eyepiece diameter: Approx. 12mm Field of view: about 122m-1000m Prism: BAK4 Coating: FMC Focusing mode: middle + right eye Size(length x height): Approx. 108x96mm/4.3x3.8in . Package List: 1 x Children Binocular Telescope 1 x Wiping cloth1 x Storage bag1 x Hanging rope1 x Instruction