My 254mm Skywatcher Dobsonian came with a single speed focuser which I found rather coarse when in use. I had seen a two-speed Crayford on another 150mm optical tube and felt it would improve my ability to focus on objects to allow simple photo imaging. This device was easy to fit following the simple enclosed instructions, making sure of course that I didn't drop the internal nuts!!! After installation, I did a standard collimation to ensure correct alignment.
This is a vast improvement on my old single - speed focuser, highly recommended.
The service from FLO was first class too!

I bought this with my Dobsonian because I wanted the fine tuning focus from the beginning of my astronomy hobby. It fits perfectly, looks great and handles just “fine”

I ordered this focuser while i am not sure if it will fit on my Newtonian without drilling, well, it did, WOW, what a focuser, great and solid, i am happy with this item and the service of this site, thanks a lot!

Fantastic service. Fantastic price. Cannot recomend First light enough. !!!!!!!!!!!!!!!!!!!

bought this dual speed crayford for said telescope and it's super smooth, replacement was done in a jiffy, supports my "big" 2" eyepieces without slippage. highly recommended !

It arrived quickly even from being shipped out of the country at it works as advertised I would definitely recommend this