["【Note Before Purchasing】1. This product only fit 51-60(155-183cm)! 2. It works perfectly on a bed sofa and floor we dont recommend using it on any chairs or recliners. 3. The massage way is not Shiatsu or Vibrate or Roller! We highly recommend that you read the product video carefully to know the massage way before purchasing!" "【3D Body Stretching & Lumbar Traction】This massage mat for bed comes with 3D full body stretching & traction plus heating therapy! It can traction up & down curve stretching and twist left & right your full body(neck/back/waist/hip/leg). Whats more it can traction your waist giving you support & relaxation. The back part has an optional heating therapy which can help you relieve stress tension and eliminate fatigue." 【More Comfortable Quieter Gentle】This massage pad provides full body 3D stretching & traction! This is a creative massage way that is different from shiatsu vibration and rolling! For some people shiatsu is painful and hard but 3D stretching & traction is more comfortable! Vibration is noisy and annoying but 3D stretching & traction is quieter! Rolling is rough and itchy but 3D stretching & traction is more gentle! 【4 Modes 3 Intensities 3 Heat Levels】 This back massager has 4 programs modes(Auto/Stretch/Twist/Flow) and 3 intensities (Low/Mid/High) and 3 optional massage parts(Neck/Back/Hip). This back stretcher features an optional heating function for the back it has 3 levels (115℉/130℉/149℉). The handheld controller is very easy to use you can enjoy a customized massage experience depending on your needs. "【Fit 51-60 & Foldable Design】 This back massager for back pain has an adjustable height neck to ensure it can fit US people from 51-60(155-183cm)! And it works fine on a bed sofa and floor but not for any chair/recliner. Also this massage pad comes with velcros and a handle the velcros make it foldable and the handle makes it portable after it is folded and its only 10 lbs its lighter and smaller than other shiatsu or roller massagers."]