SODIAL(R) 15-55x21 Mini Zoom Adjustable Monocular Telescope for Golf Scope Camping Hiking Fishing Birdwatching Concerts Mini shape, compact design 15-55 Magnification Zoom adjustable Line field: 20m/1000m Suitable for Golf, Scope, Camping, Hiking, Fishing, Birdwatching, Concerts, etc.