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. ? Feature: 1. Our products have a flat cushion surface that can be used to adjust feet, ankles, knees, shoulders and wrists. This is a linear downward motion with adjustable tension. 2. Portable limb descent and acceleration boards provide a viable age to big fixed predecessors. 3. Use Durable pinewood, special made drop system, high density foam, excellent leather as well as the handbar. ? Specification: Name: Chiropractic descent board size: S: 20.5 15 6.2cm M: 34.5 22 6.3cm Material: Pine high density foam high quality leather Function: with joint sagging, joint dislocation, joint injury, bone and joint implantation. ? The package includes: 1 Chiropractic Extremity Drop Piece Speeder Board ? Please Note: 1. Please allow 1-2cm error due to manual measurement. 2. As the display is not calibrated, the colour of the item shown in the photo may differ slightly from the actual object. Use the actual one as standard.?Wide Application?: Portable limb descent and acceleration boards provide a viable alternative to large fixed predecessors. Our products have a flat cushioning surface that can be used to adjust feet, ankles, knees, shoulders and wrists. ?Material?: Chiropractic drop board use durable pine wood, custom made drop system, high density foam, excellent leather and handlebars, strong and sturdy. ?Relief the Pain?: The model features a flat cushion surface and can be used to adjust feet, ankles, knees, shoulders and wrists. Straight drop with adjustable tension. They are ready to use in minutes. ?Chiropractic Speeder Board?: it can touch a single bone of the foot or wrist, thereby applying pressure from any angle. The applied force causes the mobility of each joint without damaging other surrounding tissues. ?Speeder Board Chiropractic?: is an essential addition to every mobile Chiropractor's tool bag. Craftsmanship Medical grade build, designed to last.