This is the 2" unit, with 1.25" adapter, Japanese made 1.5x barlow that retails for $149 from Hands on Optics. I would like to trade the unit for a quality shorty 2x barlow, preferably an orion shorty plus or ultima grade unit. Otherwise, I will take $50 for the Proxima. Direct exchange/sale in Southern California only, please (no mail). My apologies to those who responded to the original ad--I should have been more clear about the mechanics of the sale I am looking for.