It's Perfect for Adults and,Perfect Gift for Father,Husband,Son,Brother,Friend,Family...etc.Focus System: center systemPrism: b a k 4Lens Coating: fmcUnit Weight: 14 ozUnit Dimension: 6. 7 x 3. 6 x 3. 1 inchesPackaging Include:1x Smart phone adapter 1x Tripod1x Monocular1x Carrying bag1x Lens Cleaning ClothEasy Focus Instruction:1: adjust the eyepiece until suitable your eye.2: adjust the focus wheel until see clear and bright image.3: mount your monocular on the tripod, use the phone adapter and compose your image/video to your liking.【100% satisfaction hours customer service】we supply superior service, 100% money back . if you are not 100% satisfied with our product, no-questions asked, we offer a 30-day money back .Take action, ! ! !