NEXT LEVEL TRAINING – Intensify your core & balance workouts by placing hands or feet on the sliders for mountain climbers, skaters, pikes, lunges WORKS ON ANY SURFACE – With plastic on one side and foam on the other, the dual-sided dics glide smoothly on carpet, fitness mats & any hard floor PORTABLE – Lightweight and compact, the core gliders pack easily to exercise anywhere – great for travel, office breaks and carrying in your gym bag FULL-BODY WORKOUT – Expand your workout regimen by adding gliding discs for greater variety and challenge while improving agility and both upper and lower body strength LIFETIME WARRANTY – Buy with confidence with a limited lifetime warranty on all products for manufacturer defects