Specification:<br />Name: Back Magic Massage<br />Size: 38*25*6.5cm<br />Height: 7cm for level 1; 9cm for level 2; 11cm for level 3<br />Material: Plastic<br />Max loading capacity:400kg/880lb<br /><br />Highlights:<br />- Back magic is a small light-weight multi-level back stretching device that helps you relax and immediately relieves back pain due to tight muscles、 excessive flexion、 and poor spinal alignment.<br />- It helps relieve chronic back pain、 correct postural imbalances、 restore the natural curvature of the back and improve flexibility in shoulder and back muscle.<br />- Multi-level design allows users to work up to a greater stretch when ready.<br />- Back magic plus with magnetic therapy effect bump point.<br />- Comes with strap、 the back magic can be placed on chair or backrest places allowing users to use it easily. Note: don't use the machine in car in case of unpredictable accident.<br /><br />Note:  <br />1. Levels 2 and 3 should only be used after you are completely comfortable with level 1、 for many individuals it is not necessary to advance beyond the level 2. <br />2. Lever 1 is suitable for elders and those who use the back magic for the first time. <br />Level 2 is suitable for long time users. <br />Level 3 is suitable for long time exercise or yoga sports. <br />Installation: <br />1. Place the plate on a flat base. <br />2. Knee over the end of the plate to stabilize it、 and arch the board to insert the board into the slot.