High-quality bondage gear is available from Sinvention
When visiting the men of Men in Chains and Serious Male Bondage recently on my trip to Iowa, I finally got to meet Louis — who has websites here and here. Louis and I have been in touch via email for ages, and it was great to meet him! He put me in various forms of restraint, including secured with humane restraints to a cot while wearing boxing gloves:

And he also locked me in this box:

Louis shared these and many more pictures to his Tumblr page
This is the same guy who invented a self-bondage system shown HERE
Sinvention has some great leather restraint gear to check out, including this humane restraint style leather collar.
Click for Sinvention
Check out these pictures from Mark at Serious Male Bondage. Here is what Mark has to say: “As one might expect, the steel bondage crib lends itself to the use of Humane Restraints. In these photos, our friend Chuck is comfortably restrained in heavy canvas bed straps with attached leather cuffs. In addition, his hands are enclosed in padded helpless mitts. Bondage overkill is the name of the game, as we don’t want our patient to escape or hurt himself.”
Metalbond would like to thank Mark of Serious Male Bondage for the pictures and information.
To see this and much more, go to Serious Male Bondage
Check this out from SeriousMaleBondage.com:
Computers and advanced image recognition systems provide continuous monitoring and evaluation of patients during their bondage therapy. If the patient struggles, the system will automatically tighten the straps! Seriously though — guys like to see themselves in bondage. In this scene they rigged up a video monitoring system so the subject can see himself, and they can monitor the same video feed in the other room.
Check out the video coming soon on SeriousMaleBondage.com.