This is a great with bright image quality and high magnification that suitable for kids and beginners.This can ob the moon,planets,nebula and explore the mysteries of the universe,you can also watch mountains,rivers,birds,animals and enjoy the natural scenery. Type: Refractor Focal Length: 700mm Eyepiece: 4mm,12.5mm,20mm Focus ratio: f/11 Barlow lens: 1.5X,3X Tripod: adjustable tripod Warm Tips: 1、If it shows a blurred picture,please adjust focus using focus wheel. 2、When obing an outdoor target with an astronomical indoors,do not close the window to avoid the deformation of the image caused by the reflection of the window glass. 3、Use a outdoors,please wait for the temperature of the product is the same as the outdoor temperature,the performance will be better. 4、Avoid accidentally taking the into a larger temperature difference environment because the moisture in the air will condense on the objective. 5、NEVERyour at the sun or even close to the sun!