The kit came with 2 springs and 2 saddles which sit between the Helper and the Main springs and keeps them aligned.
The springs are 2" tall uncompressed and compress to about 12mm solid as the suspension takes up.
They are made from flat material,
Pic of RH rear assembly
Close up of installed Helper Spring.
In this pic you can see the red anodized saddle that locates between the 2 springs.
The original spring top hat seat is used on top of the Helper Spring