3 stetting hot comb. Use the back side of the comb to press down bumps or creases. Use the front of the comb to straighten or flatten.
You can use the comb beneath the wig hair and bring to a curl at the end.
Practice with your comb on an old heat friendly wig and get the feel of it.
For full wigs or yaki texture wigs this comb can smooth the fibers down.