These are the ASP Sentry model S100 chain-linked handcuffs. These are the first in a lower cost or budget line of restraints that provide some nice ASP safety and quality of life features, at a lower price point. VERY worth the purchase for LEO officers and security etc. They weigh 348 grams, which is more heavy than the 288 grams statistical average weight of handcuffs of this style in my collection. But they are robust and have features that are worth it, in my opinion... With ASP you get smooth edges, double locking via the slot window and via the keyholes, keyholes on both sides and these Sentry handcuffs also have these features. You get very smooth action which is almost guaranteed every time to engage the bow when applying the handcuffs, even when not much force is applied, making manual tightening easier. They have a single pawl, like the yellow double lock window models of their higher end and previous models. Another plus about modern ASP handcuffs (I think the more expensive Ultracuffs have this too) is these chain cuffs are more resistant to chain-binding attacks. Chain binding attacks are where someone in handcuffs can literally snap the handcuffs and escape by binding the chain on its self and applying force with their arms and snap them. These Sentry (and as I said, I think the others too) have a special system which reduces (or maybe prevents) this from happening... Something to consider. There is a downside to Sentry models, which is almost a non-issue due to their construction! With Sentry models, you cannot replace the locking mechanisms or "lock-sets" as they call them. However... These Sentry are all steel, like any other police / regulation pair of handcuffs, whereas every other ASP metal handcuff, including the high end Ultracuffs have plastic internal parts which can break. So it makes total sense for the ultracuffs to have the facility for owners to buy and replace their lock-sets at will, to reduce costs and prolong the life of their handcuffs. Since these are all steel, there is no plastic to wear out or get damaged any faster than any other totally metal handcuff like Smith & Wesson or Peerless. So, why bother with Sentry if you have a profession where you already have handcuffs? Lower chance of injuring someone, easier size adjustment since you can re-double-lock the cuffs via the keyway instead of having to remove the key and re-locate the DL slot window and these cuffs engage quicker and easier than almost any other brand. The only brands I know that can rival the smoothness on these are Alfa-Proj (which have the flat keys) and Kel-Met. These are very worthy to be purchased by any and all LEO police or security personnel who want a really good quality handcuff, with additional safety and convenience features at a more affordable price. These will fit in more cases than the more expensive Ultracuffs from ASP since they are a tad thinner. Designed by ASP in America, these are manufactured in Taiwan, but by a company who does a FANTASTIC job of manufacturing handcuffs, clearly. These are not cheap rubbish, these are the real deal. Enjoy! ... https://www.youtube.com/watch?v=BHO2kl_xoyI

This is just a quick look at a pair of Hiatts 2050 hinged handcuffs that are gimmicked. Basically they are identical to the recent TCH hinged handcuffs I did a full overview on. I got them cheap off eBay for the purpose of having a look-alike hinged handcuff which is gimmicked. If you would like to see a full overview of this type of handcuff, you can check out this video: https://www.youtube.com/watch?v=RjaFQKBTWM4 The only real differences are the edges are slightly less harsh and the branding stamp says TCH instead of HIATTS, but aside from that they are identical. Gimmicking is a modification process that means you can pull the handcuffs open without having to use the key. This gimmick is sometimes referred to as "Bridge Jumpers" after this style was used when people jumped off a bridge and escape handcuffs in the water. It's a really, really stupid simple gimmick. It would not pass inspection in close up magic. Not only are the teeth filed at a non-normal angle (which only a pro would notice) but you always hear the cuffs open with a Zzzziiiipppp when you pull them open. So not very covert. Gimmicked handcuffs are routinely used on TV and in the movies, for health and safety reasons. This way if there is an emergency on set when actors and extras are handcuffed or leg cuffed, they can get them self free in an instant. They can also be used as safe props for stage work, used for costume and related cosplay, pranks etc. I go one step further and modify the double locking push-pin activator to ensure if someone were to borrow them and use them, the wearer cannot get "trolled" by someone jabbing a paper clip into the double lock activator and get the person stuck in them. To do this I use a rotary tool with a conical grinding bit to widen the hole at the exterior side. Then I clear the hole using PMA brake cleaner to ensure it's free from oil/debris etc and I plug the hole with Steel-Stik, which is an epoxy putty. Once it cures hard, you cannot push the pin to double lock them. Imagine trying to push an avocado through a little kitchen funnel. It won't press in any deeper. You can visually see this at this timecode on the video 00:24 and 01:11 Making these gimmicks is a pain, because you need to repeatedly test each tooth over and over again after grinding and make sure every tooth is decently enough perfect so that random rare hang-ups where they glitch out and stop pulling open at some point are prevented. If a glitch like that were to happen you'd have to jostle them about and try again or tighten by one click and then try to pull open etc. So perfecting the grinding or filing of the teeth is very important. I always like to have some gimmicked handcuffs on hand because they come in handy for experimenting picking or using keys in various cuff positions, knowing that if you screw up, you can get yourself free. Also friends/family/colleagues around here could borrow a pair if they were going to some fancy dress thing and wanted some more legit handcuffs for their costume that look and feel real but are safer to mess about with lol. Never happened yet, but always nice to have! Enjoy! ... https://www.youtube.com/watch?v=S-i3YQcdoFE