My custom made metal wrist cuffs

Everyone is asking me where my wrist cuffs came from. And how they open and close (there is no visible lock on them). Unfortunately, they no longer exist. If anyone knows how to contact the owner of this business please let me know! They snap shut on my wrists, and they are very very tight! I can not move them at all! But they are padded with a very thin neoprene layer so they are very comfortable. The cuffs open with two special pins that have to be inserted at the same time. It is not easy to open the cuffs! I will show you how I do it in today’s video clip.

File: bndf_m_631.mp4
Size: 384 MiB
Duration: 4mn 18s
Format: MPEG-4
Video: AVC, 1920×1080 (16:9), 25.000 fps, ~12.3 Mbps avg, 0.237 bit/pixel
Audio: 44.1 KHz, AAC LC, 2 ch, ~192 Kbps