Beautiful
These are very attractive restraints. I am not a fan of big, clunky looking cuffs. I want to feel feminine and sexy, even when I'm being strapped down. I own two pairs of these (I wear one around my wrists, and one around my ankles), and have worn them as functional jewelry to BDSM clubs. I get tons of compliments on them as I walk around, and then they come in handy. The silk is high quality, and it has not frayed from use yet. The leather on it is wide enough to be strong and useful, while still adding to their appearance.

Comfortable
The wide, soft padded silk is very comfortable, even when I'm straining against them. The leather is wide enough to not feel like it's binding or digging into my skin. Often, you will see cuffs that make an attempt at comfort by lining the inside with fur or padding. However, when you bend your wrists and pull, the edges can dig into your skin. These cuffs resolve that issue by having the padding be significantly wider than the leather, so your wrists, ankles, hands, and feet stay comfy. I have very narrow wrists, and these get down small enough for me. Yet, they are easily wide enough for my ankles.

Secure
If you want something really hardcore with a locking mechanism, these won't cover your needs. If put on tight enough, you can't slip out of them, though. And, on the other hand, the belt-like closing mechanism is easy enough to get someone out of in a hurry, if needed. The leather is high quality, as is the construction. I see these lasting a long time. The one thing I worry about is the silk eventually fraying and becoming damaged.

I have never found another set of restraints that even begin to come close to how wonderful these are. They have everything I would want in a set of cuffs.