From a single overhead point: ceiling-mounted indoors, or fastened securely to an overhead tree, a climbing frame or a goalpost outdoors. Carabiners are included for clipping it on and taking it down. Whatever it hangs from carries the full 150 kg rating plus the movement of the person using it, so have the fixing checked by whoever installs it.

Anywhere from 20 cm to 270 cm, set through the quick-adjust system in the wooden housing. The short end holds the rings high for pressing work and the long end drops them near the floor for rows and suspended leg work, so a single trainer covers a low-ceilinged room and a tall garden anchor.

Through the quick-adjust system housed in the 22 cm solid wood casing at the top. It is a one-movement change with no buckles to release and no webbing to re-thread. A circuit keeps moving when the rope length changes between exercises.

150 kg, which is 331 lb. It applies to the rings, the ropes and the housing together. The trainer's own weight is 5 kg, and the anchor point it hangs from has to carry the whole rated load in motion.

24 cm in diameter, in solid wood. They are gymnastic rings, so they work as handles or as foot holders depending on the exercise, and 24 cm is wide enough to take a whole foot for suspended work.

No door-frame anchor comes with the Sling and none is offered for it. The mounting options are a ceiling fixing, an overhead tree, a climbing frame or a goalpost. If a door frame is the only anchor available to you, a different trainer is the better buy.

One year from the date of first shipment, extended to two years on components and two years on wooden components by registering the product within the first year of purchase. Spare parts carry ninety days, and the cover reads the same for private and commercial use.

No. It arrives in one package, ready to hang, with the carabiners included. The only job on the day is the anchor point.

Cheapest first, they run Shadow, Oak, Vintage, Club, Cherry, Walnut. The wood lands on the housing and the rings only, while the rope, the webbing and the carabiners are the same parts in every finish. Oak is real oak, with the aged character finish of Vintage a rung above it. Because so little of the trainer is wood, the finish works as an accent against a larger piece in the same species.

It is 5 kg in total and unclips at the carabiners, so it packs into a bag and goes up again wherever there is a sound overhead anchor. That portability is the practical case for a suspension trainer over a fixed frame, and the wooden rings survive being thrown in a bag better than moulded handles do.

The Sling needs one overhead anchor and comes down in seconds; a SlimBeam cable machine needs a load-bearing wall and stays where it is bolted, and the WallBar needs 230 cm of wall. For bodyweight work that comes down between sessions, the Sling is the smallest install of the three: one anchor point overhead and 5 kg of hardware.