Professionals love the K2 because it makes proper positioning of clients and patients easy. Clients love the K2 because it feels sooooooo good! This section, Part V, is for professionals who are ready to teach a group class on the K2. Use this for a therapeutic spine care class, as a warm-up for your fitness clients or as a way of introducing more challenging exercises. The elongation and ease the K2 lends to movement is going to make this a patient and client favorite.