Multifunctional Lumbar Traction Device: Our electric back stretcher combines four functions dynamic airbag stretching, electrotherapy, heating, and vibration massage to relieve lower back pain, herniated discs, scoliosis, and muscle strain. Ideal for middle-aged adults and anyone who sits or stands long. With a 5200mAh battery, enjoy up to 10 deep massages per charge. This drug-free, non-invasive device provides home relief, saving you time and money. Dynamic Airbag Back Stretcher: This spinal decompression device is ergonomically designed to match the natural curve of the lumbar spine, offering a snug, comfortable fit that helps restore the spine's ideal 26 curve. The dynamic airbags perform rhythmic stretching and compression both vertically and horizontally providing effective lumbar decompression.