What is the best ceramic curling iron for thick hair?

I have thick wavy hair and most straighteners or curling irons I have used are really damaging and leave my ends completely frayed. I want a curler with a large barrel to get long, controlled waves. Any suggestions?What is the best ceramic curling iron for thick hair?
okay well purchase a heat protector and apply it before u use any heat.

and to get controlled curls try useing hairspray either spray on beofre heat or while using the hair is on the curling iron.What is the best ceramic curling iron for thick hair?
these can be a little pricie but totally worth it http://www.leangelique.com/index.php?opt
you said it your self

one with a large barrel that gets really hot



also try deep conditioning your hair every other day and using heat defence spray
well i use conair because they usually have really high heat settings