Stretchable Distance: 1620 Inches Color Classification: Blue the Base Has a Builtin Standard Tripod Threaded Interface for Mounting a Tripod for Stable Viewing. It is Infinitely Variable from near to Far and Can Be Adjusted by Multiples. the 100Mm Large Objective Lens Has a Stronger Concentrating Effect and a Brighter Field of View. Aftersales Warranty: We Guarantee That You Will Receive the Products You Ordered As Long As the Product Has Any Quality Problems, We Promise to Return the Replacement or Refund. in the Meantime, If You Have Any Questions, Please Contact Us and We Will Contact You Within 24 s. Thanks for Your Trust. If You Are Satisfied, Please Give Prai Magnification: About 3090 Times (Depending on the Actual Situation).