Beechwood tensioning tool for upholstery webbing. Max webbing width 50mm. 
A beechwood tensioning tool for upholstery webbing. Rebated on one edge for frame location and slotted. The webbing is looped through the slot and held by the dowel allowing the stretcher to adjust the web tension.
Accepts webbing up to 50mm (2in) wide.
how to use demo video:
https://youtu.be/N5svu4oVDSk