Brand new Vortex 2X Doubler. Had plans to try it on my Zeiss PRF Rangefinder but it didn't fit well. I literally unboxed it, found it wouldn't fit, and placed it right back in the case. Will fit and double the power of any Vortex binocular except the Kaibabs. Here are a couple links: Cameraland Link Optics Planet Link $130 Shipped tyd in the lower 48. First "I'll take it" on the thread snags it.