Every question, answered.

No — worth saying plainly: drop it into the tub and it sinks straight to the bottom, jets running or not. Fish it out, rinse it off, and it works exactly the same — a soak or a dunk doesn't bother the material at all. It's built to sit at the waterline, not float on it.

The same wide, flexible base that rides a mattress's slopes handles the top ring's give the same way — no flat, rigid perch required. It's just as happy on the cabinet's flat edge, a cooler lid, or the deck beside you, and none of it depends on matching your specific model the way the clip-on trays do.

Measure the base, not the label or the rim. A base 2 to 3 inches across settles in — a standard can, a slim seltzer, and the 40 oz Stanley all land in that range. The plastic champagne flute is the exception; its foot runs too narrow.

That call belongs to your spa, not this product: glass is banned around hot tub water almost everywhere, because a break means draining the whole tub. This is built for what the no-glass rule leaves you — cans, plastic tumblers, and steel bottles, which covers most of what actually comes out to the tub anyway.

Movement is the whole design brief. The base flexes with whatever it's sitting on and settles the drink back level when a wave rolls through or the pump kicks on. It resists tipping — not a promise against a direct hard knock, just against the ordinary chop a soak generates.

No — it isn't mounted to anything, so nothing has to be unclipped or moved before the cover comes down the way a clip-on tray or a pole caddy does. Pick it up, set the drink somewhere else, close the cover.

Soaking guidance commonly pairs the heat with a water bottle kept within reach and shorter soak windows — advice that only works if there's somewhere for that bottle to actually sit. This gives the water bottle, and whatever else is in rotation, a spot at the waterline instead of leaving it back on the counter.

Yes, at least as well as it works at the waterline. The wide base and the grip on the drink itself are just as useful on a hard, flat surface as they are on a sloped rim or a soft inflatable ring.

Rinse it under the tap or run it through the dishwasher — one piece of flexible material, nothing to unclip and nothing to come apart.

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.

Yes — it isn't shaped to one spot. The cool-down seat's edge, the flat lip by the topside controls, the cabinet skirt: the wide base conforms to whatever's under it the same way it handles the main rim or an inflatable ring, so there's no single "correct" spot to set it.

That's really a headcount question, not a design one — nothing about it clips to one seat or one spot, so any number works and each one moves wherever the person using it moves. One per regular soaker is the simplest way to stop tracking whose can is whose; the color names help with that too — Nightcap and Waterline look different enough to tell apart on a dark patio.

It fits that gift reasonably well — a new hot tub owner has usually already hit the rim problem by the second soak, and an apres-ski cabin is exactly the scene this gets used hardest in. Cocoa and toddy mugs are the one exception: the handle sits where a fin needs to grip, so those don't work. The seltzer, the beer, and the water bottle that actually make it out to the tub do.

The recurring complaint about pole-mounted caddies, across brands in owner reviews, is that the tray leans away from the tub even off a straight pole — the mount is still fighting the same curved cabinet wall the rim gets nothing flat from. This doesn't mount to anything, so there's no pole to level and nothing to unclip before the cover closes; it sits directly on the rim, the cabinet, the cool-down seat, or the deck, wherever the soak happens to be that night.

No, worth saying plainly: a plastic champagne flute has a tiny foot, well under the 2-inch floor where a base stops gripping and starts rattling loose — it's the one container on the fit list that doesn't work. A plastic stemless wine tumbler is the workaround that actually fits the range, and it reads close enough to a toast.

Depends on the glass, and it's worth checking rather than guessing. A stemmed cocktail glass is usually actual glass, which the no-glass rule around hot tub water rules out regardless of fit. A plastic stemmed tumbler styled like one can work if its base lands in the 2-to-3-inch range — the sticky-note test settles it in ten seconds, dry, before the drink gets poured.

No — sitting at the waterline in splash, steam, and 100-plus-degree water is the exact condition this is built around, not an edge case. It's the same reason a dunk doesn't bother it: it isn't buoyant, so if it goes into the tub it sinks rather than floats, but the heat and moisture themselves don't change how the fins grip.

It does, and the numbers explain why it's worth trusting rather than eyeballing: a standard slim seltzer can runs about 2.25 to 2.28 inches across the base, comfortably inside the 2-to-3-inch range the fins are built for. The can itself is genuinely the tippiest common container at a hot tub — tall, narrow, and lighter once it's half empty — which is exactly why it's gripped at the base instead of left to balance on its own.