This is a linear downward movement with adjustable tension. You can be up and running in minutes. Indications Patients with joint laxity, joint dislocation, joint injury, bone and joint implantation Portable Extremity Drop Speeder Board is an excellent choice for chiropractors, massage therapists and body workers in general. Chiropractic Extremity Drop Piece Speeder Board Adjusting Tools, Chiropractic ActivatorChiropractic for Massage Therapists and Body Care Workers Imported beech wood Cervical Spine Chair (Wall Fixation) Sit- stand Correctionof the Cervical Spine. If you have any questions about this product, we will serve you wholeheartedly 24 hours a day.?Easy to carry?Small size, easy to carry, convenient for masseuses to carry it to the door for operation. If you have any questions about this product, we will serve you wholeheartedly 24 hours a day. ?Material safety?Safe beech wood, high elastic foam, surface PU leather, parts mechanical parts. ?Scope of application?Widely used in joint relaxation, joint dislocation, joint injury, bone joint, body massage and health care. It is suitable for upper cervical spine, limb joints, basic skills training and correction. ?Chiropractic board?This is a portable chiropractic speeder board that can touch the joints of the limbs or any single part, and can apply pressure from any angle. The force applied depends on the range of motion of each joint, and will not damage to other organizations around. ?Usage steps? Gently lift the black handle, and the chiropractic speeder board starts to open. Easily turn the knob to adjust the pressure intensity, open the pressure plate, press immediately, simple operation. Adjust the appropriate falling force to achieve the best correction effect. There are hanging holes on the back, which can be hung on the wall for upper cervical spine correction.