Tossed this in my carry-on for a weekend trip and it barely took up any space. The door anchor setup actually held firm for standing play, which I wasn't expecting from something this compact. Way more versatile than the under-bed straps I used before.
I stuck the anchors under the mattress and had my partner tied to the door in about two minutes, which I didn't expect from something this small. The whole kit rolls up into a pouch the size of my fist, so it actually came on our weekend trip.
The straps are surprisingly soft for how strong they feel, and I've used them on both a hotel bed frame and a door. Everything fits in a small pouch, so it goes in my carry-on without a second thought.