That's the whole reason it's shaped this way. A narrow base sinks into a cushion and tips — a wide flexible one spreads across it. Push it and it comes back level. The video near the top of this page is one continuous take on a regular couch cushion, and it's the same demo we do in person at shows.

Measure the bottom of your cup, not the top. Anything with a base of about 2 to 3 inches across fits — and a sticky note is exactly 3 inches, about the base of a 40 oz Stanley, which is as large as you'd want to use. So yes, your Stanley fits; so do Yeti Ramblers, standard and slim cans, bottles, and most kids' cups. The one common cup that doesn't work is a classic handled mug — the handle lands right where the fins need to grip. If the base sits inside a sticky note and there's no handle in the way, you're set.

The cushion dips and the base flexes with it. That's the wobble-then-settle — it moves, then it comes back. It's not rigid, and that's on purpose. Rigid is what tips.

It's about the footprint of a coaster and a couple of inches tall, in matte colors chosen to sit out. Nobody hides these in a drawer — that's the point of the eight colors.

No. Nothing clips, sticks, straps, or screws to your furniture. It sits on top and picks up and moves whenever you want.

Take the koozie off and put the can straight in — it grips the can directly and holds it steady, which a koozie doesn't do. A koozie inside is usually too wide.

Rinse it, or run it through the dishwasher. It's one solid piece of flexible material with nothing to come apart.

Because it's new. Steadi Labs is a small independent company in Orange, California, and this is our first product — it's patent pending, so nobody else is making it. Most people meet it at a boat show or a market, or through a friend who has one.

Steadi Labs is the company that makes it — this site is about one thing, the couch, but the product itself is called Steadi and it's made in Orange, California. Every order goes through the same checkout, the same shop, and the same 30-day guarantee. Your cart carries over exactly as you built it.

Orders leave Orange, California within one business day, free, on every order, and USPS typically has it to you in 2 to 5 days. If it's not right for you, email us within 30 days and we'll take care of it. It's Scott who reads those — I'd rather fix it than have you keep something you don't use.