Bergstrom Skegs..
Good for rocks.Korkers for kelp..
Get the size 12 or larger stud they go around a buck a piece.U can screw em in all over he sole of the boot..Or at least i have..They are OK not the best on the jetty rocks here in NJ.We have some large smooth granite that believe it or not is worse when they are dry..For them I prefer the bite of the korker studs..For just 95 percent of the places I have fished in RI and mass they where sufficient.