Not great for the cost
I ordered 1 for my cartridge (like in the pictures)  when I got it I thought it looked to small, but it would look cute in my treguss so I never opened it and just ordered 1 more to have a matching set. I put them in tonight and the metal is soooo  flimsy they don't stay closed.  The pictures look like the ball comes off but it does not! They just bend open then have a small gap no matter how much I try to close it. They are cute but not worth the cost.
Rating: 2 stars