1Automotic Open: This comb can be opened automatically and quickly with the press of a button, and the simple switch button is convenient for closing and opening. 2Portable: The comb can be folded, and can be easily put into pockets, wallets, etc., and combed anytime and anywhere, which is very suitable for traveling. 3Durable and Cool: The spring knife comb is made of stainless steel, which is strong and durable, and the smooth luster of the polished handle and the overall classic design add a cool feeling. 4Suitable for Various Hairstyles: Wide comb teeth can easily comb a variety of hairstyles. Whether you have long or short hair, wet or dry hair, you can use it to style. 5Widely Used: The comb with a small spring knife can be used to comb men's hair and beard, suitable for family, travel or professional use, and can also be used as a gift, buy it for dad, friend and boyfriend.