POSITIVE
-Fits on De Buyer 30cm + Rösle cast iron pan handle 28cm + 32cm De Buyer (sinking some)
-Versatile usable
-completely made of glass, not metal ring in / under the can accumulate dirt
-Not too heavy
-Kondenswasserablauf
-cheap price
CONCLUSION
From me a strong buy recommendation, fits with me on 3 different pans.