These links point to samples of the sort of equipment I use and suggest to patients. They are not individual product endorsements.
Assistance and resistance practice
Alpine walking sticks
Mobility Rig anchor and grips
The 120cm length gives you some flexibility to adjust your anchor. Dynex is a harder wearing material but more costly.
The 60cm length is ideal for grips. 18mm Nylon is much softer than Dynex and therefore better suited for grips.