These jump rings are of good quality and are the strongest rings Artbeads sells. You can rest assured your pieces will stay together using these rings. They are a little hard to open, but in being so, they're not going to be easy to fall apart.
I've just started using these jump rings and really like how strong and secure they are. They're a little hard to open because they are so strong, but I feel they're worth it.
Heavy Jump Rings that never come open!
These jump rings are great in almost any design for attaching clasps. 16 gauge jump rings will never come open (18 gauge do sometimes), They are kind of hard to find so I love that Artbeads has them. I use the 5mm and 6.3mm often.