Astrophotography accessories 10mm Eyepiece Astronomical Telescope Accessories 1.25 Inches/31.7mm Length: 10mm. Type: Monocular. Size: 1.25 inches (31.7 mm). Model: eyepiece. Model Number: AR0577. Discover a wide selection of telescope must-haves, including various eyepieces, Barlow lenses to double your magnification, and moon filters for comfortable lunar viewing. Our team will provide 24-hour support to help you choose the right accessories and is always committed to ensuring your satisfaction with every product. ASIN B0GY8DVB38 Brand Generic Focus Type Auto Focus Model Name NTBDCTSBD Finderscope Reflex Manufacturer Generic Model Number NTBDCTSBD Number of Items 1 Objective Lens Diameter 1 millimeters Manufacturer Part Number NTBDCTSBD Item Dimensions D x W x H 0.39 D x 0.39 W x 0.39 H