CAIDU 3060 Dual Focus Monocular Telescope / Monocular Scope with Dust Cover Good for sporting events, concerts, bird watching, camping, fishing, and travelling Multicoated optics guarantee superior light transmission and brightnessThe size of the eyepiece with dust cover. This product has dual focus capability (front and back adjustable zoom) Offers an 30x60 magnification and a 52mm objective diameter Beautiful packaging. Give a hang rope. Convenient to carry