After plenty of experience with collars, this custom collar I had created at MR-S Leather I think shows off what makes for a good play / utility collar. There is quite the selection of designs out there, however most end up being more on the fashion end than a functional restraint.
There are plenty of quality handcuffs available these days, but I thought the easy double lock system on the M&P series was worth showing around.
Starting off, these straps are a bit hard to describe which might be one reason why they are harder to find. Sometimes called straps, cuffs, or belts they also mix up further descriptions such as suspension, tension, and hanging. I'd say suspension is the most confusing, to me at least, as it infers full body weight suspension. A lot of products seem to use the word suspension freely on that note, and likely a term like partial suspension would be better.