Which curling tong will suit me?

I have really thin hair and when i use the straightener way of curling my hair it doesn't work at all.Which and what kind of curling tong would suit me? Is there a certain type for thin hair?|||You can't go wrong with the Braun cordless ones, i use these when i do my friends hair and hers is really fine, the curls last for ages, also use a really good spray and spray a layer at a time. Ellnett is good for this