PRACTICALITY AND COMPATIBILITY IN ONE - Are you still disappointed by the unsatisfactory results of styling your bearded hair? Our beard straightening combs offer 6 temperature settings including 250/280/320/360/390/430℉ for most groups of men with soft, thin, thick or curly beards or hair types. Correct temperature selection when used will produce satisfactory results, with a recommended beard length of 2 inches or longer. Note: Please use silicone coating and do not touch the heated part