Product Description: Magnification: 336 Optical: Refraction Caliber: 50-100Mm Focus Ratio: 5.76 Bracket: Theodolite Configuration: Standard + Original Package + 3X Extender Weight: 3 Kg Instructions: See the Picture and Operation Manual for Details. Please Follow the Rules Strictly. Applicable People: This Telescope is More Suitable for Adult Astronomy Enthusiasts. of Course,Even Children Can Set up Quickly and Easily,And Encourage Children to Enjoy Learning Space,Providing a Great Gift for Children Who Love Science and Astronomy. Quality Assurance: If Your Purchase Does Not Meet the Product Quality,Suitability or Description,Please Contact Us in Time,We Can Ensure That Your Problem is Solved