SkyWatcher 2x De-Luxe Achromatic Barlow Lens with T-Adapter
SkyWatcher x2 Deluxe Achromatic Barlow Lens (1.25"/31.7mm) with T-thread (male)
This nice achromatic Barlow lens can be used as a simple Barlow lens or as a T-adapter with or without the Barlow lens.
The lens can very conveniently be unscrewed when not needed, thus turning the device into a simple T-adapter.
Features multi-coated optics.