u/Proud_Fisherman_7049

I sit in a heavy office chair with my arms restrained behind my back while my autoblow ultra does the job. I been using normal cuffs without key and just using the "safety relase". Also used manchetters. Because these are so easy to take off, I duct tape around them behind my back to make it harder to get out, takes around 10min of struggle while coming..

Now I kinda broke both and it uses up alot of duct tape.. I'm looking for constraints that cant get stuck but take a while to unlock, keys seem dangerious if i drop them from the chair.. any ideas?