O-Rings for Nancy's Knit Knacks power winder set of 5

O-Rings for Nancy's Knit Knacks power winder

Looking for the o-rings that go between the power base and the winder on Nancy's Knit Knack ball winders?  We have them.  Sold in packs of 5.  

The rings fit snug so a little leverage is required to put them on.