Those things that attach to girth and stirrup

[asterid]

My friend has a toes out problem and not using calf. I know there are some things that tie to the girth and to stirrup. Does anyone know what they are called and where to get them from? Thanks

 

[Bertolie]

Think they are called symmetry straps and I got some off eBay but have never used them.

 

[asterid]

Thank you!

 

[Mo-Jo]

My instructor used bailer twine! Very uncomfortable but definitely improved my feet