Carbon steel E string with removable ball.
Professional
Great E string
Pros: Very focused sound but not shrill powerful but not shrill very impressive well on my violin which is a strad copy but a long form PG copy lower bout it 200mm .sound is good all round .I'm liking larsen strings alot although I've not tried them all ! I like the Aurora strings as the quality to performance is fantastic, I was just curious to try this I'll cannone gold e string and it's very nice ,but the Aurora E is also very very good also . I moved to using loops on my e string and having removable ball end is handy .one thing if you buy this and strings with removable ball I found using a chinrest tool placed in the ball and gently pushing removes the ball smoothly, I share this as balls can be tricky to remove .I like this strong and can recommend it .it has good amount of silk on the peg end and really like that as some makes the silk is too thin on the e string making it harder to string up .
Cons: Ball can be bit awkward to remove . But I found using a chinrest removing tool put in centre of ball push gently and the ball comes out no problem. Other than that a fantastic string .might give the ill cannone set a go when I next change strings