Ashford Handi Handle - large. Not in my stock, but easily ordered for you.
This "handi" tool is designed for weavers with impaired physical strength or limited hand mobility to assist when turning the handles to advance the warp on Ashford looms. The handi handle is simply placed over the existing nylon handle of your loom and turned gently.

Handi Handles Large - for Standard Rigid Heddle and Table Looms

Ashford Handi Handle - large