Application It can be used to relieve and improve symptoms such as hunchback, lumbar spine rehabilitation, lumbar spine pain, short stature, sedentary fatigue, etc. It can also be used for weight loss and body-shaping exercises. Our product is suitable for people of all ages from 4.76-6.07ft in height. How to Use 1. You can first adjust the length to match your height by using the knob. 2. Fix your feet on the leg holders (the leg holders are fixed). 3. Armpit top on both sides of the sponge support, shoulder lever adjustable. 4. Pull the right adjustment lever to start the stretch. 5. Push the right adjustment lever to end the stretch. Specifications Material: Steel , Pat Foam Back Panel Material: PU Wheel Material: Plastic Process: Baking Paint Color: Black ＆ Red Assembly Required: Yes Number of Items: 1 Load Capacity: 150kg/330.7lbs Telescopic Size: 145cm-185cm/57.08-72.83in Applicable Height: 1.45-1.85m/4.76-6.07ft Hand Rest Stretching Distance: 160mm/6.3in Diameter of Main Steel Pipe: 30mm/1.18in Telescopic Steel Pipe Diameter: 25mm/0.984in Pipe Wall Thickness: 1.5mm/0.059in Foam Diameter: 65mm/2.56in Backplane Size: 106*35.5*4cm/ 41.73*13.97*1.57in Product Height: 23cm/9.05in Package Size: 114*37*13cm/44.88*14.57*5.12in Gross Weight: 9.2kg/20.28lbs Package Included 1* Back Stretch Decompression Bench Other Accessories for Installation