This is an absolutely great price on a Siemens AFCI 15 amp breaker as long as you can confirm that it is not a counterfeit. Counterfeit breakers is a huge industry these days with online purchasing of breakers. AFCI breakers can prevent over 50% of electrical Home fires, and I strongly recommend them. I have AFCI breakers installed in my house, and my place of business. Also remember that the brand of breaker needs to match your breaker panel, unless it’s UL listed for use in the particular brand of panel you are trying to put it in, if different. Also remember that the breaker size is determined by the wire size, so don’t oversize your breaker.