Hi there @alejandromarin2000 and welcome to the Bose Community!
The speakers you are looking at here are likely our "Jewel Cube" speakers, alongside our Centre Jewel Cube speaker. The smaller variant of these is often referred to as the "Double Falcon" speakers.
Please note that the price and reference number(s) for these speakers will vary depending on the country/region that you're based in. As such, I would recommend that you click HERE, select your country/region, then search for the speakers that you have here.
Alternatively, I would advise that you visit a local Bose store, and using those pictures for reference, get some advice to help ensure that you are using the right speakers and getting the most accurate prices.
I hope this helps, and please let me know if you have any questions at all!