- Foam rollers developed by physical therapists - Foam roller that helps maintain proper posture by deep stimulation of spine and fascia through rolling movement - It is the patent product that applied mechanical joint structure stretching spine to foam roller. Corediet Deep roller - Home Excerise Body care equipment ~S100 for neck ~S120 for back and waist S120 Specification: Material : Environmental EPP Areas : Neck, Back, Waist, Hip, Thigh, Calves, Feet Size : 12cm x 50cm Weight : 205g S100 Specification: Material : Environmental EPP Areas : Neck, Back, Waist, Hip, Thigh, Calves, Feet Size : 10cm x 50cm Weight : 165g