Only Firm videos are both scientifically correct and motivating - the most spectacular video workout productions ever created.  They simply don't get boring!  Guest trainer Jennifer Krater hosts 5 daily short (7-9 min) stretch routines.  Gain flexibility and become relaxed after these routinesRoutines are featured by five all-star Firm leaders.  Janet Jones Gretsky (Vol. 2), Sandahl Bergman (Vol. 3), Susan Harris (Vol. 1 & Vol. 4), LaReine Chabut (Vol. 5) and Jayne Poteet (Vol. 6).