The tops of my keel bolts, i.e. bolts and nuts, are covered by a solid
resin (I think) cylinder. It looks like someone put cardboard cylinder
around each and filled them with resin.
Is it normal practice to cover the keel bolts like this, or a
do-it-yourself idea?
Are the keel bolts happy in there? The 'casts' hace a few cracks, but I
can't tell if they are deep. Should I take them off? If yes, put
anything else on instead? Ot just leave alone?

Thanks!