I am selling a 2" inch Bintel crayford style focuser with 1.25" adapter. The base is curved to fit a tube around 300mm, it fit a 350mm tube i had with no problems. I have only used it a handful of times. My reason for selling is that the focuser has too high a profile for my secondary-tube diameter-focal length combination. I have since replaced this item with a low profile version.
More details can be found here
https://www.bintelshop.com.au/Product.aspx?ID=7628
The focuser retails for $129 my asking price is $80.
Please PM me if interested or pictures are required.