Descriptions:Model: B20*50Dimension(LxWxH): 22x6x9cmMagnification: 20xObjective Lens Diameter: 50 mmOcular diameter : 14mmFocus : Center FocusField of view: 90m ~1000mLens Material : Bak7Field Angle: 6°Exit Pupil Diameter (mm): 2.5Focus adjustable (Y/N) : YesNet weight: 220gWeight (including packaging) : 450g Package includes:1x telescope1x tripod1x bag1x clear cloth1x strap