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. 

In the past I came across a play partner that specifically liked thuddy impact and after browsing around BDSM toy stores I noticed there weren't many thuddy toys in general. Frustrated with the main options just being simple club sticks that were usually not wide enough and large paddles that were too stingy, I came up with this rope-bat concept.

There are a lot of ballgag types these days, but I wanted to show this particular version as I would certainly recommend it if you had to only have one ballgag and a good choice in general.

Although plenty of BDSM fun can be had with simple connections, locks are a great way to take a bondage foundation to the next level. The mere use of any locks communicates to the bottom that there will be no escape on their own no matter the amount of begging or struggling. The bottom must now depend on the top for release which tends to add to the secured and controlled feeling. Security aside, locks are also a good way to make short connection points where easy hardware like snap hooks tend to end up much longer.