Equicizer Replacement Springs - $15.95 each / Set of 6 - $84.95
Equicizer custom springs are made of music wire for long life and durability.
Spring (Silver) Clips are available. Additional $1.95 each (Set of 6 Replacement Springs shown with "Spring Clips")
I have not been back to England to put them on. I'm sure they'll improve Lily's exercise routine.