Every question, answered.

Yes — at least as well as it works anywhere. A tray top is a hard, flat surface, and that's exactly the terrain the wide base and the fin grip are built for: a fork cut or an elbow bump doesn't get a free runway, and a nudged drink settles back instead of creeping toward the edge.

The carpet wobble is the tray's problem, not the drink's, once the base is doing its job. The fins hold the glass from the sides regardless of how level the top is — it resists tipping through the same tremor that makes the fork rattle.

Check the base, not the bowl — wine glasses flare at the top and taper underneath, and the base is what the fins actually hold. A base 2 to 3 inches across settles in, which covers a stemmed or stemless glass either way.

Yes, that's confirmed. It's tall and heavy for a folding tray that only weighs a few pounds itself, which is exactly why a base that grips matters more, not less, once a full tumbler's on board.

No. No clip hunting for the right arm width, no cutout sized for one cup, nothing to install. It sits flat on the tray, the coffee table, or the arm, and lifts off in a second when the trays fold up for the night.

The glass stands in the base, so the sweat lands there instead of soaking into the tray finish. It won't undo a ring that's already set in, but it stops tonight's glass from starting a new one.

Yes. It doesn't depend on the tray having legs, a frame, or any particular hardware — it sits on whatever flat surface is under the drink, cantilevered lap top included.

Rinse it, or run it through the dishwasher. It's one piece of flexible material with nothing to unclip or take apart — unlike the tray's folding hinges.

It's called the Steadi, molded in small runs in Orange, California by Steadi Labs — veteran-founded and patent pending. Every order ships free from steadilabs.com, with 30 days to change your mind.

That depends on how many trays get used on a given night, not on the set. A classic TV tray set is four, sold on one storage rack, and each base does one tray on its own — there's no reason to match trays one-for-one if only two people are eating in front of the TV tonight. Order for the drinks you'll actually have out, not the trays hanging in the corner.

Yes — it isn't part of the fold. It's one piece of flexible material that lifts off the tray top before the legs fold in and sits back down after they're set up again, so it never touches the hinge or the locking mechanism that's doing the actual folding. Nothing about nightly setup and teardown puts wear on it the way it wears on a tray's own hardware.

Yes. The base and fins hold by grip, not by anything temperature-sensitive, so a ceramic cup or an insulated tumbler of coffee or tea sits the same as a cold can or glass would — check the base width, not what's in it. A handled cup is the one exception, for the same reason it's an exception cold: the handle sits where a fin needs to grip.

It comes down to the base, same as with any container. A lot of kids' cups — sippy cups, juice boxes, anything with a narrow foot or a non-round base — fall outside what the fins can hold, and a juice box's shape doesn't apply at all. A round kid's cup or tumbler with a base in the 2 to 3 inch range settles in the same as an adult one does; check it against the sticky-note test before assuming either way.

It's a fair fit for anyone whose evenings regularly involve a folding tray in front of the television — it solves a specific, recognizable annoyance rather than a general one, which tends to make it land well as a small, practical gift. It ships free and comes with 30 days to send it back if it doesn't earn its spot.

A raised lip only becomes useful after a drink has already tipped over — it contains the spill, it doesn't stop the glass from going over in the first place. The base and fins work earlier than that: they hold the glass upright through the fork cut or elbow bump that would have sent it toward the lip to begin with.

Yes. It doesn't depend on tray legs, a frame, or any particular hardware underneath — it sits on whatever flat surface is under the drink, whether that's a folding tray top or a C-table's fixed one. A C-table's steadier base fixes the carpet-leg wobble, but most C-tables still don't include anywhere built in to hold a drink, so the same gap shows up there too.

A standard 12 oz aluminum can measures 2.60 inches across the body, per Ball Corporation and Crown Holdings' own manufacturing specs — comfortably inside the 2 to 3 inch range the fins are built for, with room to spare on either side. A slimmer 12 oz "sleek" can, the kind used by several energy-drink brands, runs narrower at about 2.25 to 2.26 inches and still clears the floor.