bought this dive rings in the summer for my children and used very often.
You have survived all the "inserts" and be sure next year to meet its benefit.
The kids had a lot of fun with it.
Especially they liked that the dive rings are not lying on the ground but were on the ground. Thus they were able to see this very well and attack. The rings do not sink too quickly. For about 1 m You need 5 - 6 seconds.
Only the blue Tauchring is gone after a short time apart a little, that he has come off the white weight.
However, this can be addressed again with a super glue, which is why I would like this not too negative.
For me, and especially my children a strong buy recommendation.
MfG