The one with white spot is a Haworthia, not a cactus. The grafted yellow one is a Gymnocalycium.

Hello, the pointy leaved speckled job looks like a kind of Haworthia, the one with the grafted yellow blob is collectively called a moon cactus and I haven't a clue to the other one. If you type these two names individually in the search box above, check the c/s option you seem there and there will be umpteen pages of info on each. Others will come along and be more presise but this is as good as I can get as I don't grow these :-)

Gill

Were they purchased all planted together like that? I know you're not asking for my opinion, but it would be a good idea to pot the Haworthia separately since it has different water and light needs from the cacti.

Hi liz, They were purchased together, thank you for your advice. I will try to plant them seperate but the company glued rocks on top:(

The succulent on the left looks like euphorbia mammillaaris:). You will know if it's a euphorbia when a piece breaks off, and white latex type goo comes out. If that does happen be very careful with this goo substance it's VERY TOXIC! Don't get it in your eyes and on your skin. It has made people blind:(.