Using Rollers is an excellent way to cool & soothe your skin instantly. Regular usage supports anti-aging by improving blood circulation in the face. Gives your face a better shape by reducing jaw & brow tension. Ease puffiness from the face & improve the Lymphatic Drainage System by massaging the face for 5-10 minutes for a happy and calm start to your day or right before a great night's sleep. Material - Jade Crystal