Cactus promise

Can not find the name once again.   But I love this little cactus.  I am waiting for the flowers to open, but has not happened as yet.  
   Molly is feeling pretty close to normal today.  We all had a nice walk and spent a lot of time on the porch in the shade.  Fairly good breeze all day.  I think it was up in the 90's today but is about 88 at present!!