Snap swivel size

[martin22]

What size snap swivel is best for upto 30g feeders?
I know by looking at them what size i normally use but obviously now we can’t just walk into a shop and I don’t have any in original packaging and don’t for the life of me know what size to order online

 

[Line Clip]

I use Preston Innovations pellet waggler snap swivel's less fiddly to use than others, or Guru snap swivel ( very strong ) comes in three sizes any of these will not let you down.