The Madame Jordan Toddler Onbuhimo is a ladder-lock onbuhimo designed for back carrying. It is made from a Natibaby Tulips wrap conversion and has perfect fit adjusters. It will also carry a preschooler
Their instructions are here.
Here is a good video for a back carry with an general onbuhimo
You can find all of our videos and photo tutorials listed on the Carrying Matters website.
The Sheffield Sling Surgery website is here - full of useful information about safety, all sorts of articles about warm/cold weather carrying. knee to knee support, big kid carrying and so on
Facebook page is here and the online support group the Virtual Sling Surgery is here