Alex talks about Rotosound Roto Electric Guitar Strings - Made in the UK since 1958, Rotosound strings are also used by Geddy Lee, Billy Sheehan, Duff McKagan, Michael Amott, Mikey Demus and Steve Harris and were used in the 1960’s by The Who, The Jimi Hendrix Experience and Pink Floyd as well as many other top bands and musicians through every decade since.
Check them out here
https://www.rotosound.com/