The stability disc is an important tool used in core training. Designed for you to stand, sit, rest and kneel on, the stability disc can be used for all fitness and rehabilitative weight bearing exercises including lunges, squats, push-ups, planks, crunches & core twists. The Loumet Stability Disc can be used on a chair, stool or the floor for activating the users deep core muscles and stabilizers through continuous small movements. Size 33cm diameter. Age 3+