No springs- I love this one. So challenging yet strangely restorative when you add a round back on the knee pull. #pilates #plank #kneetonose #dumbopilates #dumbofitness #dumbopersonaltraining #cadillac https://www.instagram.com/p/ByX0E_nAULb/?igshid=10079qzf6i33l











