Thread Guide Spring for Bobbin Winder - Singer Part # 15366

Thread Guide Spring for Bobbin winder 

• Part # 15366
• Outside diameter: 9mm
• Please be advised these will not work with some of the early 66 models
• The last picture shows the style of bobbin winder and location
• Bobbin winder NOT INCLUDED

Fits Singer models: 66, 99, 115, 15-30