The newly opened Rockbox Fitness gym, located at 1141 Flower Mound Road, Ste. 600, Flower Mound, opened July 20. It offers boxing, kickboxing and functional training for its members.

Rockbox hosts six-week challenges in which members aim to lose 25 pounds or 6% of their body fat through full-body group workouts. The gym's atmosphere, according to representatives, is "where fight club meets night club."

The fitness studio also offers nutrition assistance and accountability coaching. 469-221-9040. www.rockboxfitness.com