I can't see any difference in https://www.amazon.com/SUNPOW-Resistance-Assistance-Exercise-Powerlifting/dp/B07K1823XB/ref=mp_s_a_1_8?keywords=layered+resistance+bands+natural+latex&qid=1675615430&refresh=1&sr=8-8 and https://www.amazon.com/Undersun-Fitness-Latex-Exercise-Resistance/dp/B07DZXTCCM/ref=mp_s_a_1_3?keywords=layered+resistance+bands+natural+latex&qid=1675615430&refresh=1&sr=8-3
I use Undersun and they are fantastic quality but i am not sure about their availability in Italy
No, though I have nothing against it, it's very solidly made! I'm actually pretty tempted to upgrade to the (abysmally named) Harambe System, which seems pretty slick.
But putting together a budget version is really easy. You can do it for about $200 if you go for the cheaper platform:
I use this bar: https://www.amazon.com/gp/product/B09WYNVGH4/ref=ppx_yo_dt_b_asin_title_o07_s01?ie=UTF8&psc=1
These clips: https://www.amazon.com/gp/product/B099446RCK/ref=ppx_yo_dt_b_asin_title_o07_s02?ie=UTF8&th=1&psc=1
These bands: https://www.amazon.com/Undersun-Fitness-Latex-Exercise-Resistance/dp/B07DZXTCCM/?th=1
This anchor: https://www.amazon.com/gp/product/B08B3MW4VK/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
These handles: https://clenchfitness.com/collections/band-tools/products/clench-band-handle?variant=20165667192905
This platform: https://clenchfitness.com/collections/band-tools/products/clench-footplate?variant=39823487008847
Here's a much cheaper platform I've also used; it's fine for beginners: https://www.amazon.com/gp/product/B08YYH1T5J/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&th=1