I purchased the 10,000 mg roller on a hope and a prayer, and it delivered! I’ve had three back surgeries in my life, all at my lower-lumbar. For the entire month of September, something had shifted in my back, and my pain was unbearable. I knew that the 4,500 mg roller had helped me with my legs where my nerve damage causes muscles to clench without relief. The 4,500 mg roller took an edge off my back pain this September also, so I thought, why not try for the 10,000mg option? This roller is the THE ONLY relief I’ve truly experienced! It takes more than the edge off. I feel like I can stand up straight without needing to bend over and even feel like my entire lower back is instantly soothed. The doctors prescribe pain meds and items with lidocaine relief. The pain meds help to a degree but lidocaine patches are a joke. Neither option comes nearly close to the relief the 10,000mg roller’s help. The relief from the roller is not long lasting, but I don’t care. I can manage a few hours that feels more like myself and that’s more I can say for any other remedy. I wish the roller weren’t so expensive. Because when you’re truly in need of this potency, it goes fast. But again, I’ve found it to be worth the investment.