The binoculars used by adults are suitable for hiking, , mountain climbing, bird watching, wildlife watching and scenery. Packing list: Telescope * 1 Box * 1 Instructions * 1 Warranty Card * 1 Lens cleaning cloth * 1 Specifications: Product Name: 8-10x42 Monocular Maximum magnification: 8-10 x Objective lens size: 42mm Product specifications: 139x55mm Eyepiece size: 22mm Single piece weight: 336g Prism te: BAK4 Prism coating: FMC coating TIPS:If you need help or have Any questions,feel free to contact us. We will do our best to help you.