The COREFX Muscle Activator is a massage ball with several superior qualities that set it apart from standard offerings. After strenuous exercise, muscle fibers need some care to help them achieve their maximum potential. We don’t all have time for an expensive massage so the Muscle Activator provides the next best thing. The Muscle Activator has a unique ergonomically formed surface that fluctuates for various angles of attack on tense muscles, creating optimal pressure to target deep trigger points to break up knots and restore mobility. The Muscle Activator is composed of high density rubber material that is hygienic, durable, recyclable, hypoallergenic and latex free, designed to help you recover faster!