BNWB- only worn once, Lilac Keen2 bracelet size s/m I have two of them in this listing as it was recommend to purchase one for each arm. I only wore these once to test them before realizing I needed the larger size. My other ones have helped me with my trichotillomania for years. I highly recommend if you need help with BFRB or bad habits like nail bitting, or skin picking. Introducing the Keen2* smart BFRB Bracelet, a specially designed habit-breaking bracelet for those struggling with body-focused repetitive behaviors (BFRBs). Whether you're dealing with hair pulling (trichotillomania), skin picking (dermatillomania), nail biting (onychophagia) or other related habits, this trichotillomania bracelet acts as a watch, monitoring and assisting in breaking these patterns. It combines the benefits of a habit bracelet, hair pulling bracelet, and skin picking bracelet into one comprehensive behavior bracelet to empower you towards change. *Recommended for hair pulling and skin picking behaviors on the face, scalp, shoulders, and nail biting.