Threemart Knee Crutch Hands Free Crutch Stable and Comfortable Peg Leg Knee Calf Ankle New Fast Ship! I open each box to confirm they are complete and functional before shipping If you have any issues with product purchased from me, please contact me 1st and give me a chance to address any issues before opening a return or contacting Assembly Guidance: These items can be a little tricky to assemble the first time. If you need help, please watch the video linked in the listing. The model shown isn?t identical, but the general process is very similar and should provide useful guidance. Important Step: Please remove "Blue Pin" [see pic] before attempting to adjust leg height, Do not try to completely remove or force out the bottom leg inner tube. This piece is designed to stay in place and must be aligned with the holes on the outer tube in order to lock properly. Forcing it out can cause damage, so please make sure it?s lined up rather than pulled apart [use flashlight] Please watch video before attempting assembly The make/model shown isn?t identical, but the general process is very similar and should provide useful guidance. Version Video will open in a new window Using the App? Paste link into a browser window: [isdntekvideo]