Recommended use: 5 minutes, twice daily. This back stretcher helps relieve tension and is effective for pain from muscle spasms, pinched nerves, herniated discs, sciatica, degeneration, tight knots, excessive flexion, and more. Simple to use and portable for easy travel. Key benefits - Relieves back pain and supports posture; preventive care for the lower back. - Posture improvement: the design helps correct and improve your overall posture. Ergonomic design - Suitable for all ages. Multi-level arch with 3 adjustable settings to accommodate different ages and fitness levels and to improve flexibility. Versatility and function - Lumbar support cushion for ongoing comfort. - Acts as a back massager, spinal traction device, and posture corrector. - Back support for office chair and versatile for home, office, or travel use. - Acupuncture massager capability for targeted relief. 2-3 practical use scenarios - At the desk: place the device under your lower back during breaks to relieve tension and improve posture. - After exercise: use for gentle traction and stretch to aid recovery and flexibility. - While traveling: compact and portable for use on planes, trains, or in hotel rooms to maintain back health on the go.