This product is intended for healthy, active adults with general knowledge of massage techniques. Important: Any individual who may be pregnant, has a pacemaker, suffers from diabetes, phlebitis and/or thrombosis, is at an increased risk of developing blood clots, or who has pins/screws/artificial joints or other medical devices implanted in his/her body should consult with a physician before using a massaging device. The Information including opinions and recommendations, contained on product labels and backballer.com website is for educational purposes only. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition. Muscle Ballers Ltd. wholly disclaims responsibility for any and all adverse effects or consequences resulting directly or indirectly from the use or misuse of Muscle Ballers products. Please consult your physician when therapeutic massage may be contraindicated.Muscle Ballers Ltd. is not responsible for economic loss; profit loss; or special, indirect or consequential damages, including without limitation, losses or damages arising from physical injury to user occurring while user is following the guidelines within the product.