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Decathlon rings cost 2000 bucks.
You could get 12 of them for the price of one pair of the Lacertosus stainless steel rings.
But the stainless steel rings are really hard to make. I know cause I tried.
To bend a solid rod into a perfect circle using a die without causing little dents all over the surface is really really hard. And then you weld it where two ends meet and polish it. It takes lots of time, money and effort.
And the Decathlon rings will work just fine.
These rings exist for the same reason Lamborghinis, Bugattis and Bentleys exist in a world of Toyota Hyryders and Hyundai i10’s.
Nice things exist because the company that makes them hopes someone will find them nice enough to pay a premium for them. Even when they don’t do the job significantly better than a much cheaper variant would.
Why do rings exist ?
Rings are versatile. They’re good for dips, pushes, pulls, rows, assisted rows and a variety of other mobility, gymnastics, calisthenics or plyometrics moves.
Their USP is how freely they rotate as you do a movement. The wrist and shoulders are free to move. This is a double-edged sword. With great rotation comes the need for great stabilisation. And that’s not easy.
I personally find rings better than suspension trainers (generically known by the name of the company that popularised them TRX). The curve of a ring makes it more comfortable to grip. And dips are much more comfortable. I’ve never done ring muscle ups. But I imagine they would be more comfortable to do on rings than on suspension trainers.
Rings are made in plastic, wood or metal.
I like metal ones. But I’ve seen clients use all three and individual preferences vary!
The texture of the surface makes a big difference. As does the ability of the surface to hold chalk and provide a firm grip. Standard rings are 28 mm in diameter. But 32 mm are also found. You get rings for kids that are 25 mm in diameter.
None of these are authorised for use in gymnastics competitions. That would have to be FIG certified rings. And the prices of those puts the Lacertosus rings to shame.