SVBONY 5x24 Finder Scope with Bracket Plastic Accessory Kit for Astronomy Telescope The finder scope is a secondary scope that's used to help you locate objects in the main telescope;3 thumb screws allow positioning XY adjustment for precise telescope alignment It provide 5x24 low power magnification;the telescope fixed to the body of a more powerful telescope and pointed in the same direction for initially locating an object to be observed Tube has a glossy black metallic finish and cross hair reticle;includes mounting bracket and dust caps;the bracket fits any telescope optical tubes and the dust caps protects against dust and fingerprin Mounting bracket has curved base with two holes and attaches to telescope tube with bolts or screws;bracket will not slide into a dovetail base Lifetime warranty;we confidently promise lifetime warranty for each one from us