Anne, a Big Eye needle should be joined at both ends - so it's like a needle but it's all hole iyswim.
I wouldn't use one for beadweaving though, you'd be better off as Pollie says with a beading needle.
Big Eyes are good for things like threading ribbon through beadwork, where you need to get through a small gap but the material you're threading into the needle is quite wide. Also for threading bigger beads onto something like elastic that won't go through an ordinary beading needle.
Good luck with your spiral!
