Gorgeous! what is the name of it? very unusual.
I'm not sure, it came un-named, once I have found an ID I'll post t here. If anyone knows please let me know.
I went googling and could it be in this family?http://etc.usf.edu/clippix/picture/cereus-peruvianus-spikes.htmlthe shape is somewhat similar- it definitely has spikes like yours...
ID now found and added to post. It is Stenocactus lau 1377
aka 'Brain cactus'.... :-)
LOVE this one...the stripes are an extra bonus!
I like them as well. The flowers have been long lasting as well, almost a week now, which by cactus standards is good.