OTC 2501 Professional Orthopaedic Supports: OTC 2501 over-the-door cervical traction kit is easily set up for home use. It relieves pressure on muscle nerve tissue and minor fractures of the cervical spine. Indicated for nerve pain from herniated discs vertebral joint pain muscle spasm lost of spinal motion; contraindicated in cases of acute cervical injury osteomyelitis spinal instability and hypermobility tumors rheumatoid arthritis