These plastic bobbins are used on most new Singer sewing machines. They are 15k class and suitable for front loading or top loading sewing machines.
Bobbin Plastic 15k Front Loading Fits Top Loading Pack of 3
Singer 15k Parts - UK
Polystar Prewound SA156 / 15J Plastic Bobbins 144ea
Singer Fashion Mate 3333, 3337, 3342 Genuine Singer Accessories
The Singer Plastic Class 15 Bobbins - Transparent will make a great addition to your sewing supplies. These four class 15 transparent plastic bobbins
SINGER Class 15 Plastic Bobbins Transparent 4ct
SINGER HEAVY DUTY 4411, 4423, 4432, 5523 Genuine Singer Accessories £1.50 - PicClick UK
SINGER HEAVY DUTY 4411, 4423, 4432, 5523 Genuine Singer Accessories £1.50 - PicClick UK
10Pcs Metal Bobbins Spool Sewing Craft Tool,Plastic Sewing
PLASTIC BOBBINS / 15K or 66K / Clear PLASTIC SEWING MACHINE BOBBIN
Bobbin Winder Tire Friction Wheel 29 mm x 15 mm x 7 mm Fits Most