How to hang the sketchpad on a triangular easel

There are two bolts on the upper part of the tripod. You just need to adjust the position of the bolt and align the groove of the iron bar with the bolt. But you have to take out the iron bars on the tripod first. When installing the iron bar on the tripod, insert the iron bar into it with the protruding metal ring on the iron bar, and then adjust the locks of each part. It doesn't matter. The stick of that rope is to tie the support leg behind!