Ideal for entrylevel Newtonian reflector telescopes, this focuser is designed to fit 110–160 mm PVC tube diameters, making it suitable for a range of beginner to intermediate setups. Key benefits Improves usability for backyard astronomy: supports Moon, planetary details, and deepsky objects with smooth focusing during extended skywatching sessions. Durable and precise build: crafted from tough ABS, this 160 mm long focuser offers a 65 mm extension range and a 1.25 inch interface for reliable performance. Secure mounting compatibility: features three mounting holes for secure attachment to telescopes with up to 150 mm apertures. Broad compatibility within Newtonian designs: designed for 76 mm, 114 mm, and 135 mm Newtonian reflector telescopes, with easy installation and precise visual alignment. Specifications and features Length: 160 mm Extension range: 65 mm Interface: 1.25 inch Mounting: three mounting holes Material: ABS Tube diameter compatibility: 110–160 mm PVC tubes Telescope compatibility: Newtonian reflectors, 76 mm / 114 mm / 135 mm Maximum attached aperture: up to 150 mm 23 practical use scenarios Backyard observatories: use during evening sessions to observe Moon craters, planetary details, and select deepsky objects with consistent focus over long observations. Portable upgrades: attach quickly to small to midsize Newtonian reflectors (76 mm, 114 mm, 135 mm) for improved focus control in field settings. Beginner to intermediate setups: or upgrade a basic focuser to achieve easier installation, secure mounting, and precise visual alignment on compatible Newtonian telescopes.