Insulators as follows -- all for $8 plus actual postage

2 1/2" white glaze -- a few nibbles or flaws in ridges

2 1/2" cobalt blue glaze -- no issues

2 3/8" cobalt blue glaze -- couple small flakes (note some dirt in the fins which I have now cleaned)

3 1/4" white glaze -- no issues

3" brown glaze -- no issues