Now you can throw a new lid to a fired pot without simply guessing at the size. Make one measurement and you have its opposite immediately.
Measure the fired pot with the inside end of the Lid Master. Tighten the wing nut. Now throw a new lid using the outside end for your measurement. It will shrink to fit.
Standard Size Lids: up to 11-1/2"
For larger pots, see G-LLM1.