There are independent companies offering Total Gym product attachments for sale claiming they can be used on the Total Gym. These companies are not affiliated with or authorized by Total Gym Fitness, LLC. Our Total Gym attachments are designed and intended for use on authentic Total Gym products only and not for use on any other product. For products purchased from any unauthorized source, we will not assume any liability for damages caused by using unauthorized products. Total Gym Fitness, LLC is committed to the safety and quality of our products but are not able to control these important factors when products are purchased from an unauthorized source.