FOUR O-RINGS_ O-ring for Main Black Cone Disk-Jumbo Yarn Ball Winder for Nancy Knit Knacks Jumbo Wooden Yarn Ball Winder. Every 2-3 years, the main o-ring that is part of the black cone disk will break. This is the replacement o-ring. It is made of the highest quality and specifications. This is keep your wonderful Nancy Knit Knacks Ball Winder working into the future. Thanks
Peter Charles
The Oregon Wood Worker
