The SVBONY 5x24 low power;wide angle telescope fixed to the body of a more powerful telescope and pointed in the same direction for initially locating an object to be observed. An adjustable focusing wheel is projected onto a non magnifying viewing window so you can aim the main telescope quickly and easily. High quality eyepieces and objectives. Quality crosshair viewfinder makes targeting celestial objects in your telescope easy! Fully coated, achromatic glass optics yield crisp, bright images for easy aiming. Do you have focusing problems for your telescope? Do you want to give your reflector an accurate focuser? SVBONY SV181 Rack & Pinion Focuser for Newtonian reflector is coming! 65mm Focusing Stroke Roller-bearing design provides zero image-shift through focusing range easily achieve the sharpest focus through a telescope even at high magnifications For 114mm and 150mm Newtonian Reflector Telescopes This particular curved base focuser is made for Newtonian style reflectors and would not be ideal on Maksutov or Smidt Cassigrains 1.25inches Inner Diameter Smooth accurate for reflector telescopes accepts 1.25in eyepieces; Comes with a dust plug to protect the focuser from dust and moisture when no in use Specifications: Focuser Type: Rack Pinion Design The focuser tube: 105mm Focuser Travel : 65mm Eyepiece adapter : 31.75mm Material: Metal Compatibility: Suitable for 114mm and 150mm Newtonian reflector telescope Net weight: 410g Package Includes: 1x SV181 1.25" R&P Reflector Style Focuser 1 x M4 Screw 1 x M6 Screw