3V telescope accessories for optical calibration of refractive

Size (mm): 67 x 44 x 23 mm. Type: Monocular Diameter: 0.02 mm. Adapter Type: DC5.5*2.1 Discover a wide selection of essential accessories for your telescope, including various eyepieces, Barlow lenses to double your magnification, and lunar filters to comfortably observe the Moon. Our team offers you 24-hour support to help you choose the right accessories and is committed to ensuring total satisfaction with each product.