2in 2X Barlow Lens Astronomical Telescope Magnifying Lens With 2in To 1.25in AS

Item Type: Barlow Lens. 1 x Barlow Lens. Adapter Ring Interface: 2in to 1.25in. Installable Filter Lens: There are threads inside the front interface of the lens, and the filter lens can be installed and used, the screw fixing design makes the connection more stable.

eBay