1This guide scope is made of quality material, sturdy, lightweight and durable 260mm guide scope with bright, wide-field optics, help you quickly finder the target in the telescope 3Comes with a bracket that fits all kinds of telescope, easy to install 410mm focusing range in both sides, helical focuser is easy to use 5Nice accessory for astronomy lovers, suitable for QHY5II, STI, DMK, ZWO, SG4, etcFeatures: This guide scope is made of quality material, sturdy, lightweight and durable. 60mm guide scope with bright, wide-field optics, help you quickly finder the target in the telescope. Comes with a bracket that fits all kinds of telescope, easy to install. 10mm focusing range in both sides, helical focuser is easy to use. Nice accessory for astronomy lovers, suitable for QHY5II, STI, DMK, ZWO, SG4, etc.Specification: Material: Aluminium Alloy Color: Black Object Dia: 60mm / 2.36in Focal Length: 240mm / 9.45in Interface: 1.25 inch (M42*0.75 external thread) Double Helix Focusing Range: 10mm Weight: Approx. 1087g Package List: 1 x Finderscope 1 x Bracket