Stringing Machine parts

Hi,

I wondering which websites are the best for stringing machine parts. I can find hardly anything via google! I'm mainly looking to buy some different side supports. I currently have pro's pro K supports. http://www.racquetdepot.co.uk/products/Pro's-Pro-Stringing-Machine-Racquet-Frame-Support.html

I dont feel like they give much support on the base of the racket. So wich shape side support is the best?

thanks

 

thanks for the quick reply! Do you use these?

 

yes I don't really like the pros pro side supports, they dont feel strong enough. Could you give me a few things that make michal's better just so I can persuade my dad to get them, otherwise he will say there is nothing wrong with the ones I have at the moment!