Are your Spinders overloaded, overweight or just old? Do you have pages slipping through the top rings?
If so, adding Spinder Sleeves to the top rings might help.
These easy-to-use plastic tubes slide onto the top ring and "seal" the gap.
This kit includes Spinder Sleeves for 7 Rings.
(Spinder Sleeves are generally used only on the top rings of your Spinders.)