Threemart Knee Crutch - Hands Free Crutch Stable and Comfortable Peg Leg New Fast Ship! *Note: these boxes were sealed ... but opened to check that they are complete and that the push spring release is functional 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 *These can be tricky to assemble the 1st time, if you have any issues try watching video link below This video is not the same model ... but should help with assembly Important note: while assembling don't attempt to remove bottom leg tube completely or it might get damaged, it needs to line up with holes on outer tube to lock into place. [see video] Step 1 - How to Assemble your iWALK 3.0 Hands-Free Crutch - Old Version Video will open in a new window Using the App? Paste link into a browser window: [isdntekvideo]