Strong D rings, clips and buckles. Works well with no issues to my recollection.
Hasnt been on a dive since 2011 or so as I now prefer a different BCD. Of course can also be used for recreational diving.
The cheaper blue one may not function but intermittently but I believe the boxed LED one to be in prime condition. The item "Halcyon DIR Dive Systems Scuba BCD Plus Flashlights Tech Diver BCD" is in sale since Wednesday, January 15, 2020. This item is in the category "Sporting Goods\Water Sports\Scuba & Snorkeling\Buoyancy Compensators".
The seller is "bcillusionist5" and is located in Midland, Texas. This item can be shipped to United States.