Features: Experience ultimately relief with our Lumbar Stretcher featuring a unique ergonomic design and strategically placed magnetic nodes that naturally aligns with spinal curves to alleviate lower back pain caused by prolonged sitting or standing. Crafted from light yet durability plastic, this portable back massager offer adjustable height/angles settings and easy assembly, delivering targeted pressure through scientific alignment for deeply muscle relaxation. Ideal for office workers, frequent driver, fitness enthusiasts, and health conscious individuals seeking daily tension relief or post workout recovery solution. Perfectly adapts to home offices, car seats, or travel luggage for on the go lumbar support during work hours, long commutes, or wellness focused trips. The ABS plastic construction ensures long lasting durability while maintaining skin safe standards, making it for households prioritizing spinal health and environmental consciousness. Specifications: Component:Plastic, Magnets Size:Approx.38x25cm/14.96x9.84inch 3Option Color Bearing Weight:100kg TFeatures: 3Gear,10pcs Magnets ball,Ergonomically designed, providing multilevel adjustment to meet different intensity needs Suitable for daily lumbar spine exercises and soothing massage to help improve waist discomfort caused by sitting for long periods of time Package Includes: 1pc Back Stretcher note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.