This is a DVD that provides a detailed explanation of the lower back pain improvement stretching method developed by Asuka Acupuncture Clinic. DISC1 Theory: 138 minutes DISC2 Practice: 87 minutes DISC3 Practice Summary: 96 minutes DISC4 Theory and Practice by Symptom: 63 minutes Addresses lower back pain, sciatica, herniated discs, spinal stenosis, intermittent claudication, spondylolysis, spondylolisthesis, and acute lower back pain. Purchase price: 14,800 yen. Please note that this is a used item, although the discs have no scratches. Returns and exchanges are not accepted.