Adjustable Focal Length, You Can Rotate It Easy To Use Eyepiece Lens According To Object Or Need, Supplied With Very Convenient Strap, Supplied With Easy To Carry Cleaning Cloth, Ideal For Keeping Lens Clean Travel, Hiking, Camping, Bird Watching, Etc.

Specifications: Color: Black Material: Optical Lens/Rubber Focus Type: Rotating Object Lens Magnification: 30x Object Diameter: 52mm Eyepiece Diameter: 17mm Output Student Diameter: 2mm Output Student Distance: 20mm Field of View: 40m/1000m Package Size: 6.4x6.4x17 Cm/2.5x2.5x6.7 "