DetailsDescription & Features *RELIEVE BACK STRESS & POSTURE CORRECTION - 96 Massage protrusions brings acupuncture effect by deeply pressing the specific acupoints. It helps activate the natural healing response and improve the blood circulation to give you completely relief for back pain, spinal pain, muscle pain, sciatica pain relief, etc..*ARCH SHAPE - Multi-level arch dotted by silicone features a spinal groove that cradles and protects the spine. Lying on it will feel ultra-comfortable after sedentary work.*3 HEIGHTS ADJUSTABLE - 2.76in/3.55in/4.34in These 3 adjustable settings, suit for initial user or sport lovers! You can fix this back stretcher device at the most comfortable level for easy stretching and effective pain relief. The higher the back stretcher, the more stretch you get.*220LBS MAX LOAD - Adopt premium ABS materials with arch shape design, support 220LBS max weight. No need to worry about the break down when stretching your back.*Multi-Purposes - Can be placed on a chair to help correct your sitting posture, or car seat to serve as a lumbar stretcher for car that helps reduce the tiredness especially for long time road drive. A thoughtful present send to your kids, parents, friends and the elderly.Specification - Product Type - Multi-Level Lumbar Support Stretcher3 Adjustable Heights - 7cm/2.76in; 9cm/3.55in; 11cm/4.34inMax Load Bearing - 100kg/220LBSAcupuncture Point Quantity - 96PcsColor - Black + BlueMaterials - ABS; SiliconeFully Stretched Item Size - 37x24x11cm/14.57x9.45x4.34inItem Weight - 562.5g/1.24LBSPackage Size - 40*30*5cm/15.75*11.8*2inPackage Weight - 542g/1.2lbsPackageContents - Multi-Level Lumbar Support StretcherUser Manual